diff --git a/calculus.py b/calculus.py
index 62e890f..19d2fcc 100644
--- a/calculus.py
+++ b/calculus.py
@@ -346,7 +346,6 @@ def test(exp):
     #print("Bis")
     steps = [postfix]
     steps += computePostfixBis(postfix)
-    print(steps)
     print_steps(steps)
     #print(postfixToInfix(postfix))
     #print(get_main_op(exp))
diff --git a/fraction.py b/fraction.py
index c05b457..02a7dba 100644
--- a/fraction.py
+++ b/fraction.py
@@ -24,22 +24,20 @@ class Fraction(object):
         steps = []
 
         if self._denom < 0:
-            self._num = - self._num
-            self._denom = - self._denom
-            steps.append(self)
+            n_frac = Fraction(-self._num, -self._denom)
+            steps.append(n_frac)
 
         gcd_ = gcd(abs(self._num), abs(self._denom))
         if self._num == self._denom:
-            self._num = 1
-            self._denom = 1
-            steps.append(self)
+            n_frac = Fraction(1,1)
+            steps.append(n_frac)
 
         elif gcd_ != 1:
-            self._num, self._denom = self._num // gcd_ , self._denom // gcd_
-            steps.append("( {reste1} * {gcd} ) / ( {reste2} * {gcd} )".format(reste1 = self._num, reste2 = self._denom, gcd = gcd_))
+            n_frac = Fraction(self._num // gcd_ , self._denom // gcd_)
+            steps.append("( {reste1} * {gcd} ) / ( {reste2} * {gcd} )".format(reste1 = n_frac._num, reste2 = n_frac._denom, gcd = gcd_))
 
             # Certainement le truc le plus moche que j'ai jamais fait... On ne met que des strings dans steps puis au dernier moment on met une fraction. C'est moche de ma part
-            steps.append(self)
+            steps.append(n_frac)
 
         return steps