diff --git a/src/BigRational.php b/src/BigRational.php
index 9f7ccae..4625781 100644
--- a/src/BigRational.php
+++ b/src/BigRational.php
@@ -429,7 +429,8 @@ public function toInt() : int
      */
     public function toFloat() : float
     {
-        return $this->numerator->toFloat() / $this->denominator->toFloat();
+        $simplified = $this->simplified();
+        return $simplified->numerator->toFloat() / $simplified->denominator->toFloat();
     }
 
     /**