diff --git a/Assets/Scripts/Cauldron/Cauldron.cs b/Assets/Scripts/Cauldron/Cauldron.cs
index 4415fbc..69b2e69 100644
--- a/Assets/Scripts/Cauldron/Cauldron.cs
+++ b/Assets/Scripts/Cauldron/Cauldron.cs
@@ -28,6 +28,9 @@ public void AddIngredient(IIngredient ingredient)
                 return;
             }
 
+            // TODO: Add a check here to make sure that the fractions are of the same denominator
+            // (in other words, plants are the same type)
+
             ingredients.Add(ingredient);
             value += ingredient.Value;
 
diff --git a/Assets/Scripts/Utility/Fraction.cs b/Assets/Scripts/Utility/Fraction.cs
index b97ef2c..a9d9cb8 100644
--- a/Assets/Scripts/Utility/Fraction.cs
+++ b/Assets/Scripts/Utility/Fraction.cs
@@ -1,3 +1,4 @@
+using FractionGame.Inputs;
 using UnityEngine;
 
 namespace FractionGame.Utility
@@ -54,17 +55,42 @@ public override string ToString()
         
         public static Fraction operator +(Fraction a, Fraction b)
         {
-            int numerator = a.numerator * b.denominator + b.numerator * a.denominator;
-            int denominator = a.denominator * b.denominator;
+            int denominator = CalculateCommonDenominator(a, b);
+            int numerator = denominator / a.denominator * a.numerator + denominator / b.denominator * b.numerator;
             return new Fraction(numerator, denominator);
         }
 
         public static Fraction operator -(Fraction a, Fraction b)
         {
-          int numerator = a.numerator * b.denominator - b.numerator * a.denominator;
-           int denominator = a.denominator * b.denominator;
-          return new Fraction(numerator, denominator);
+            int denominator = CalculateCommonDenominator(a, b);
+            int numerator = denominator / a.denominator * a.numerator - denominator / b.denominator * b.numerator;
+            return new Fraction(numerator, denominator);
         }
 
+        /// <summary>
+        /// Returns the common denominator between two Fractions.
+        /// </summary>
+        /// <param name="a"></param>
+        /// <param name="b"></param>
+        /// <returns></returns>
+        public static int CalculateCommonDenominator(Fraction a, Fraction b)
+        {
+            /* 
+             * Cases:
+             * 1) a and b are the same
+             * 2) one number is a factor of the other
+             * 3) the two numbers need to be multiplied together to get the common denominator
+             */
+
+            int x = a.denominator;
+            int y = b.denominator;
+
+            if (x == y || x % y == 0)
+                return x;
+            else if (y % x == 0)
+                return y;
+            else
+                return x * y;
+        }
     }
 }
\ No newline at end of file
diff --git a/Assets/Tests/Test Sprites/plant_dog.png.meta b/Assets/Tests/Test Sprites/plant_dog.png.meta
index 8048e20..9bca1af 100644
--- a/Assets/Tests/Test Sprites/plant_dog.png.meta	
+++ b/Assets/Tests/Test Sprites/plant_dog.png.meta	
@@ -37,7 +37,7 @@ TextureImporter:
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
-    filterMode: 1
+    filterMode: 0
     aniso: 1
     mipBias: 0
     wrapU: 1
@@ -96,6 +96,19 @@ TextureImporter:
     ignorePlatformSupport: 0
     androidETC2FallbackOverride: 0
     forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: WebGL
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
   spriteSheet:
     serializedVersion: 2
     sprites:
diff --git a/Assets/Tests/Test Sprites/roslinka.png.meta b/Assets/Tests/Test Sprites/roslinka.png.meta
index d75f6fa..e66642b 100644
--- a/Assets/Tests/Test Sprites/roslinka.png.meta	
+++ b/Assets/Tests/Test Sprites/roslinka.png.meta	
@@ -37,7 +37,7 @@ TextureImporter:
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
-    filterMode: 1
+    filterMode: 0
     aniso: 1
     mipBias: 0
     wrapU: 1
@@ -96,6 +96,19 @@ TextureImporter:
     ignorePlatformSupport: 0
     androidETC2FallbackOverride: 0
     forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: WebGL
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
   spriteSheet:
     serializedVersion: 2
     sprites: