diff --git a/Content.Tests/Shared/Chemistry/Solution_Tests.cs b/Content.Tests/Shared/Chemistry/Solution_Tests.cs
index 2714ce2252..f149d66043 100644
--- a/Content.Tests/Shared/Chemistry/Solution_Tests.cs
+++ b/Content.Tests/Shared/Chemistry/Solution_Tests.cs
@@ -221,6 +221,24 @@ namespace Content.Tests.Shared.Chemistry
             Assert.That(splitSolution.TotalVolume.Int(), Is.EqualTo(1));
         }
 
+        [Test]
+        public void SplitSolutionFractionalOpposite()
+        {
+            var solution = new Solution();
+            solution.AddReagent("water", ReagentUnit.New(1));
+            solution.AddReagent("fire", ReagentUnit.New(2));
+
+            var splitSolution = solution.SplitSolution(ReagentUnit.New(2));
+
+            Assert.That(solution.GetReagentQuantity("water").Float(), Is.EqualTo(0.33f));
+            Assert.That(solution.GetReagentQuantity("fire").Float(), Is.EqualTo(0.67f));
+            Assert.That(solution.TotalVolume.Int(), Is.EqualTo(1));
+
+            Assert.That(splitSolution.GetReagentQuantity("water").Float(), Is.EqualTo(0.67f));
+            Assert.That(splitSolution.GetReagentQuantity("fire").Float(), Is.EqualTo(1.33f));
+            Assert.That(splitSolution.TotalVolume.Int(), Is.EqualTo(2));
+        }
+
         [Test]
         [TestCase(0.03f, 0.01f, 0.02f)]
         [TestCase(0.03f, 0.02f, 0.01f)]