From 999fde1c513a2c50c432acc321e4c8d31f7eb7fd Mon Sep 17 00:00:00 2001
From: lafrite <lafrite@poneyworld.net>
Date: Fri, 17 Jan 2014 18:10:38 +0100
Subject: [PATCH] Add -f for Fraction

---
 fraction.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fraction.py b/fraction.py
index 289df7e..9d0f28c 100644
--- a/fraction.py
+++ b/fraction.py
@@ -126,6 +126,9 @@ class Fraction(object):
         steps += ans_frac.simplify()
 
         return steps
+
+    def __neg__(self):
+        return [Fraction(-self._num,self._denom)]
     
     def __mul__(self, other):
         if type(other) == Fraction: