diff --git a/src/FloatConversion.php b/src/FloatConversion.php
index 2f54839..e99a08b 100644
--- a/src/FloatConversion.php
+++ b/src/FloatConversion.php
@@ -11,7 +11,7 @@ class FloatConversion
     private $precision;
 
     /**
-     * @param float $float
+     * @param float      $float
      * @param float|null $precision
      */
     public function __construct(float $float, float $precision = null)
@@ -35,9 +35,10 @@ public function fraction(): Fraction
      * Adjust the precision for float->fraction conversion.
      *
      * @param float $precision
+     *
      * @return FloatConversion
      */
-    public function withPrecision(float $precision): FloatConversion
+    public function withPrecision(float $precision): self
     {
         return new static($this->float, $precision);
     }
diff --git a/src/Fraction.php b/src/Fraction.php
index 2706a38..eee100f 100644
--- a/src/Fraction.php
+++ b/src/Fraction.php
@@ -27,7 +27,7 @@ public function __construct(int $numerator = 1, int $denominator = 1)
      *
      * @return Fraction
      */
-    public function simplified(): Fraction
+    public function simplified(): self
     {
         return $this; // TODO
     }
diff --git a/tests/FractionConversionTest.php b/tests/FractionConversionTest.php
index 47e5bfe..bb7f4b0 100644
--- a/tests/FractionConversionTest.php
+++ b/tests/FractionConversionTest.php
@@ -1,7 +1,7 @@
 <?php
-/**
+/*
  * Created by IntelliJ IDEA.
  * User: hugh
  * Date: 03/11/2018
  * Time: 11:48
- */
\ No newline at end of file
+ */