diff --git a/src/runtime/src/integer.rs b/src/runtime/src/integer.rs
index c89a71c9..aceebfaa 100644
--- a/src/runtime/src/integer.rs
+++ b/src/runtime/src/integer.rs
@@ -100,7 +100,7 @@ pub extern "C" fn integer_slash_integer(x: *const Integer, y: *const Integer) ->
     let x = unsafe { x.as_ref().unwrap() };
     let y = unsafe { y.as_ref().unwrap() };
 
-    let boxed = Box::new(Rational::from(x / y));
+    let boxed = Box::new(Rational::from(x) / y);
     Box::into_raw(boxed)
 }
 
diff --git a/src/semantics/tests/mod.rs b/src/semantics/tests/mod.rs
index 456d747a..a90eb044 100644
--- a/src/semantics/tests/mod.rs
+++ b/src/semantics/tests/mod.rs
@@ -19,6 +19,7 @@ e2e!(non_class_constructor);
 e2e!(plus_assign);
 e2e!(predeclare_function);
 e2e!(predeclare_vars);
+e2e!(rational);
 e2e!(reference_mut);
 e2e!(references);
 e2e!(specify_variable_ty);
diff --git a/src/semantics/tests/plus_assign/plus_assign.ppl b/src/semantics/tests/plus_assign/plus_assign.ppl
index 92304287..43d49b1f 100644
--- a/src/semantics/tests/plus_assign/plus_assign.ppl
+++ b/src/semantics/tests/plus_assign/plus_assign.ppl
@@ -1,7 +1,7 @@
-let mut i = 0
-println i
-i += 1
-println i
+let mut value = 0.0
+println value
+value += 1.0
+println value
 
 let mut str = "Hello"
 str += " World!"
diff --git a/src/semantics/tests/plus_assign/run.log b/src/semantics/tests/plus_assign/run.log
index 98fbd89b..bb79ff17 100644
--- a/src/semantics/tests/plus_assign/run.log
+++ b/src/semantics/tests/plus_assign/run.log
@@ -1,3 +1,3 @@
-0
-1
+0.0
+1.0
 Hello World!
diff --git a/src/semantics/tests/rational/rational.ppl b/src/semantics/tests/rational/rational.ppl
new file mode 100644
index 00000000..6ee21134
--- /dev/null
+++ b/src/semantics/tests/rational/rational.ppl
@@ -0,0 +1,15 @@
+println 0.0
+println +1.0
+println -2.0
+println 1.0 + 2.0
+println 5.0 - 1.0
+println 2.5 * 2.0
+println 9.0 / (3 / 2)
+println 0.0 == 0.0
+println 1.0 != 0.0
+println 0.0 < 1.0
+println 1.0 > 0.0
+println 0.0 <= 0.0 
+println 0.0 <= 1.0
+println 0.0 >= 0.0
+println 1.0 >= 0.0
\ No newline at end of file
diff --git a/src/semantics/tests/rational/run.log b/src/semantics/tests/rational/run.log
new file mode 100644
index 00000000..af874bed
--- /dev/null
+++ b/src/semantics/tests/rational/run.log
@@ -0,0 +1,15 @@
+0.0
+1.0
+-2.0
+3.0
+4.0
+5.0
+6.0
+true
+true
+true
+true
+true
+true
+true
+true