diff --git a/lib/membrane/clock.ex b/lib/membrane/clock.ex
index 401bbf7d2..2db8325f0 100644
--- a/lib/membrane/clock.ex
+++ b/lib/membrane/clock.ex
@@ -37,7 +37,7 @@ defmodule Membrane.Clock do
   @typedoc """
   Ratio of the Clock time to the reference time.
   """
-  @type ratio_t :: Ratio.t() | non_neg_integer
+  @type ratio_t :: Ratio.t()
 
   @typedoc """
   Update message received by the Clock. It should contain the time till the next
@@ -47,8 +47,8 @@ defmodule Membrane.Clock do
           {:membrane_clock_update,
            milliseconds ::
              non_neg_integer
-             | Ratio.t()
-             | {numerator :: non_neg_integer, denominator :: pos_integer}}
+             | ratio_t
+             | {numerator :: non_neg_integer, denominator :: pos_integer()}}
 
   @typedoc """
   Ratio message sent by the Clock to all its subscribers. It contains the ratio
@@ -118,7 +118,7 @@ defmodule Membrane.Clock do
 
     state =
       %{
-        ratio: 1,
+        ratio: Ratio.new(1),
         subscribers: %{},
         time_provider: options |> Keyword.get(:time_provider, fn -> Time.monotonic_time() end)
       }
@@ -140,7 +140,7 @@ defmodule Membrane.Clock do
         subscribe(proxy_for)
         state
       else
-        broadcast_and_update_ratio(1, state)
+        broadcast_and_update_ratio(Ratio.new(1), state)
       end
 
     {:noreply, state}
@@ -200,7 +200,7 @@ defmodule Membrane.Clock do
   defp get_proxy_options(true, _proxy_for), do: %{proxy: true, proxy_for: nil}
 
   defp get_proxy_options(_proxy, _proxy_for),
-    do: %{init_time: nil, clock_time: 0, till_next: nil, proxy: false}
+    do: %{init_time: nil, clock_time: Ratio.new(0), till_next: nil, proxy: false}
 
   defp handle_unsubscribe(pid, state) do
     Process.demonitor(state.subscribers[pid].monitor, [:flush])
@@ -212,13 +212,13 @@ defmodule Membrane.Clock do
   end
 
   defp handle_clock_update(till_next, state) do
-    use Ratio
+    till_next = Ratio.new(till_next)
 
-    if till_next < 0 do
+    if Ratio.lt?(till_next, 0) do
       raise "Clock update time cannot be negative, received: #{inspect(till_next)}"
     end
 
-    till_next = till_next * Time.millisecond()
+    till_next = Ratio.mult(till_next, Ratio.new(Time.millisecond()))
 
     case state.init_time do
       nil -> %{state | init_time: state.time_provider.(), till_next: till_next}
@@ -227,10 +227,9 @@ defmodule Membrane.Clock do
   end
 
   defp do_handle_clock_update(till_next, state) do
-    use Ratio
     %{till_next: from_previous, clock_time: clock_time} = state
-    clock_time = clock_time + from_previous
-    ratio = clock_time / (state.time_provider.() - state.init_time)
+    clock_time = Ratio.add(clock_time, from_previous)
+    ratio = Ratio.div(clock_time, Ratio.new(state.time_provider.() - state.init_time))
     state = %{state | clock_time: clock_time, till_next: till_next}
     broadcast_and_update_ratio(ratio, state)
   end
diff --git a/lib/membrane/core/timer.ex b/lib/membrane/core/timer.ex
index 66e9c41cb..226c6e226 100644
--- a/lib/membrane/core/timer.ex
+++ b/lib/membrane/core/timer.ex
@@ -19,7 +19,7 @@ defmodule Membrane.Core.Timer do
         }
 
   @enforce_keys [:interval, :clock, :init_time, :id]
-  defstruct @enforce_keys ++ [next_tick_time: 0, ratio: 1, timer_ref: nil]
+  defstruct @enforce_keys ++ [next_tick_time: 0, ratio: Ratio.new(1), timer_ref: nil]
 
   @spec start(id_t, interval_t, Clock.t()) :: t
   def start(id, interval, clock) do
@@ -48,8 +48,6 @@ defmodule Membrane.Core.Timer do
   end
 
   def tick(timer) do
-    use Ratio
-
     %__MODULE__{
       id: id,
       interval: interval,
@@ -58,16 +56,18 @@ defmodule Membrane.Core.Timer do
       ratio: ratio
     } = timer
 
-    next_tick_time = next_tick_time + interval
+    next_tick_time = Ratio.add(Ratio.new(next_tick_time), Ratio.new(interval))
 
     # Next tick time converted to BEAM clock time
     beam_next_tick_time =
-      (init_time + next_tick_time / ratio) |> Ratio.floor() |> Time.round_to_milliseconds()
+      Ratio.add(Ratio.new(init_time), Ratio.div(next_tick_time, ratio))
+      |> Ratio.floor()
+      |> Time.round_to_milliseconds()
 
     timer_ref =
       Process.send_after(self(), Message.new(:timer_tick, id), beam_next_tick_time, abs: true)
 
-    %__MODULE__{timer | next_tick_time: next_tick_time, timer_ref: timer_ref}
+    %__MODULE__{timer | next_tick_time: next_tick_time |> Ratio.floor(), timer_ref: timer_ref}
   end
 
   @spec set_interval(t, interval_t) :: t
diff --git a/lib/membrane/time.ex b/lib/membrane/time.ex
index 87b8b0a8a..ec887e8f3 100644
--- a/lib/membrane/time.ex
+++ b/lib/membrane/time.ex
@@ -11,6 +11,8 @@ defmodule Membrane.Time do
   that do not touch hardware clock, you should use Membrane units for consistency.
   """
 
+  require Ratio
+
   @compile {:inline,
             native_units: 1, native_unit: 0, nanoseconds: 1, nanosecond: 0, second: 0, seconds: 1}
 
@@ -30,7 +32,7 @@ defmodule Membrane.Time do
   # Difference between 01.01.1900 (start of NTP epoch) and 01.01.1970 (start of Unix epoch) in seconds
   @ntp_unix_epoch_diff 2_208_988_800
 
-  @two_to_pow_32 Ratio.pow(2, 32)
+  @two_to_pow_32 Ratio.pow(Ratio.new(2, 1), 32) |> Ratio.trunc()
 
   @doc """
   Checks whether a value is `Membrane.Time.t`.
@@ -260,12 +262,8 @@ defmodule Membrane.Time do
     end
 
     # credo:disable-for-next-line Credo.Check.Readability.Specs
-    def unquote(unit.plural)(number) do
-      if not Ratio.is_rational?(number) do
-        raise "Only integers and rationals can be converted with Membrane.Time.#{unquote(unit.plural)}"
-      end
-
-      Ratio.*(number, unquote(unit.duration))
+    def unquote(unit.plural)(number) when Ratio.is_rational(number) do
+      Ratio.mult(number, Ratio.new(unquote(unit.duration)))
       |> round_rational()
     end
 
@@ -288,7 +286,7 @@ defmodule Membrane.Time do
     @spec unquote(as_fun_name)(t) :: integer | Ratio.t()
     # credo:disable-for-next-line Credo.Check.Readability.Specs
     def unquote(as_fun_name)(time) when is_time(time) do
-      Ratio./(time, unquote(unit.duration))
+      Ratio.new(time, unquote(unit.duration))
     end
   end)
 
@@ -298,7 +296,6 @@ defmodule Membrane.Time do
   end
 
   defp round_rational(ratio) do
-    ratio = make_rational(ratio)
     trunced = Ratio.trunc(ratio)
 
     if 2 * sign_of_rational(ratio) *
@@ -308,14 +305,6 @@ defmodule Membrane.Time do
        else: trunced
   end
 
-  defp make_rational(number) do
-    if Ratio.is_rational?(number) do
-      number
-    else
-      %Ratio{numerator: number, denominator: 1}
-    end
-  end
-
   defp sign_of_rational(ratio) do
     if ratio.numerator == 0, do: 0, else: Ratio.sign(ratio)
   end
diff --git a/mix.exs b/mix.exs
index ac515ce6f..4c2beda2b 100644
--- a/mix.exs
+++ b/mix.exs
@@ -139,7 +139,7 @@ defmodule Membrane.Mixfile do
       {:qex, "~> 0.3"},
       {:telemetry, "~> 1.0"},
       {:bunch, "~> 1.5"},
-      {:ratio, "~> 2.0"},
+      {:ratio, "~> 3.0"},
       # Development
       {:ex_doc, "~> 0.28", only: :dev, runtime: false},
       {:makeup_diff, "~> 0.1", only: :dev, runtime: false},
diff --git a/mix.lock b/mix.lock
index 865a82fa2..0941989de 100644
--- a/mix.lock
+++ b/mix.lock
@@ -7,7 +7,7 @@
   "dialyxir": {:hex, :dialyxir, "1.2.0", "58344b3e87c2e7095304c81a9ae65cb68b613e28340690dfe1a5597fd08dec37", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "61072136427a851674cab81762be4dbeae7679f85b1272b6d25c3a839aff8463"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.29", "149d50dcb3a93d9f3d6f3ecf18c918fb5a2d3c001b5d3305c926cddfbd33355b", [:mix], [], "hexpm", "4902af1b3eb139016aed210888748db8070b8125c2342ce3dcae4f38dcc63503"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_doc": {:hex, :ex_doc, "0.29.0", "4a1cb903ce746aceef9c1f9ae8a6c12b742a5461e6959b9d3b24d813ffbea146", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "f096adb8bbca677d35d278223361c7792d496b3fc0d0224c9d4bc2f651af5db1"},
+  "ex_doc": {:hex, :ex_doc, "0.29.1", "b1c652fa5f92ee9cf15c75271168027f92039b3877094290a75abcaac82a9f77", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "b7745fa6374a36daf484e2a2012274950e084815b936b1319aeebcf7809574f6"},
   "excoveralls": {:hex, :excoveralls, "0.15.0", "ac941bf85f9f201a9626cc42b2232b251ad8738da993cf406a4290cacf562ea4", [:mix], [{:hackney, "~> 1.16", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "9631912006b27eca30a2f3c93562bc7ae15980afb014ceb8147dc5cdd8f376f1"},
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~>2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
@@ -25,7 +25,7 @@
   "numbers": {:hex, :numbers, "5.2.4", "f123d5bb7f6acc366f8f445e10a32bd403c8469bdbce8ce049e1f0972b607080", [:mix], [{:coerce, "~> 1.0", [hex: :coerce, repo: "hexpm", optional: false]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "eeccf5c61d5f4922198395bf87a465b6f980b8b862dd22d28198c5e6fab38582"},
   "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
   "qex": {:hex, :qex, "0.5.1", "0d82c0f008551d24fffb99d97f8299afcb8ea9cf99582b770bd004ed5af63fd6", [:mix], [], "hexpm", "935a39fdaf2445834b95951456559e9dc2063d0a055742c558a99987b38d6bab"},
-  "ratio": {:hex, :ratio, "2.4.2", "c8518f3536d49b1b00d88dd20d49f8b11abb7819638093314a6348139f14f9f9", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "441ef6f73172a3503de65ccf1769030997b0d533b1039422f1e5e0e0b4cbf89e"},
+  "ratio": {:hex, :ratio, "3.0.2", "60a5976872a4dc3d873ecc57eed1738589e99d1094834b9c935b118231297cfb", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "3a13ed5a30ad0bfd7e4a86bf86d93d2b5a06f5904417d38d3f3ea6406cdfc7bb"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
   "telemetry": {:hex, :telemetry, "1.1.0", "a589817034a27eab11144ad24d5c0f9fab1f58173274b1e9bae7074af9cbee51", [:rebar3], [], "hexpm", "b727b2a1f75614774cff2d7565b64d0dfa5bd52ba517f16543e6fc7efcc0df48"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
diff --git a/test/membrane/clock_test.exs b/test/membrane/clock_test.exs
index 0557df515..2ec21c895 100644
--- a/test/membrane/clock_test.exs
+++ b/test/membrane/clock_test.exs
@@ -3,7 +3,7 @@ defmodule Membrane.ClockTest do
 
   @module Membrane.Clock
 
-  @initial_ratio 1
+  @initial_ratio Ratio.new(1)
 
   test "should calculate proper ratio and send it to subscribers on each (but the first) update" do
     {:ok, clock} =
@@ -16,7 +16,8 @@ defmodule Membrane.ClockTest do
     refute_receive {:membrane_clock_ratio, ^clock, _ratio}
     send(clock, {:membrane_clock_update, 2})
     send(clock, time: 13)
-    assert_receive {:membrane_clock_ratio, ^clock, 2}
+    two = Ratio.new(2)
+    assert_receive {:membrane_clock_ratio, ^clock, ^two}
     send(clock, {:membrane_clock_update, random_time()})
     send(clock, time: 33)
     ratio = Ratio.new(20 + 2, 33 - 3)
@@ -24,8 +25,6 @@ defmodule Membrane.ClockTest do
   end
 
   test "should handle different ratio formats" do
-    use Ratio
-
     {:ok, clock} =
       @module.start_link(time_provider: fn -> receive do: (time: t -> ms_to_ns(t)) end)
 
@@ -38,7 +37,9 @@ defmodule Membrane.ClockTest do
     send(clock, {:membrane_clock_update, 5})
     send(clock, time: 20)
     @module.subscribe(clock)
-    ratio = (5 + Ratio.new(1, 3) * 2) / (20 - 5)
+    two = Ratio.new(2)
+    five = Ratio.new(5)
+    ratio = Ratio.div(Ratio.add(five, Ratio.mult(Ratio.new(1, 3), two)), Ratio.new(20 - 5))
     assert_receive {:membrane_clock_ratio, ^clock, ^ratio}
   end
 
diff --git a/test/membrane/core/element_test.exs b/test/membrane/core/element_test.exs
index b8f551e13..1ffda3101 100644
--- a/test/membrane/core/element_test.exs
+++ b/test/membrane/core/element_test.exs
@@ -257,9 +257,10 @@ defmodule Membrane.Core.ElementTest do
     {:ok, clock} = Membrane.Clock.start_link()
     state = Membrane.Core.TimerController.start_timer(:timer, 1000, clock, get_state())
 
-    assert {:noreply, state} = Element.handle_info({:membrane_clock_ratio, clock, 123}, state)
+    assert {:noreply, state} =
+             Element.handle_info({:membrane_clock_ratio, clock, Ratio.new(123)}, state)
 
-    assert state.synchronization.timers.timer.ratio == 123
+    assert state.synchronization.timers.timer.ratio == Ratio.new(123)
   end
 
   test "should set stream sync" do