Implementation fraction multiplication

Fractions/MyFraction.py

@@ -9,28 +9,56 @@ def __str__(self):
 	def __add__(self, fraction):
 		self.sumNum = self.numerator + fraction.numerator
 		self.sumDen = self.gcf(self.denominator, fraction.denominator)
+		self.sumgcd = self.gcf(self.sumNum,self.sumDen)
+		self.sumNum = self.sumNum // self.sumgcd
+		self.sumDen = self.sumDen // self.sumgcd
 		answer = MyFraction(self.sumNum, self.sumDen)
 		return answer
 
 	def __sub__(self, fraction):
-		answer = "Calculate the answer. The answer will be a fraction"
+		self.subNum = self.numerator*fraction.denominator - self.denominator*fraction.numerator
+		self.subDen = self.denominator*fraction.denominator
+		self.subgcd = self.gcf(self.subNum ,self.subDen)
+
+		if self.subgcd==0:
+			return MyFraction(0,0)
+		self.subNum  = self.subNum  // self.subgcd
+		self.subDen = self.subDen // self.subgcd
+
+		answer = MyFraction(self.subNum ,self.subDen)
 		return answer
 
 	def __mul__(self, fraction):
-		answer = "Calculate the answer. The answer will be a fraction"
+		self.mulNum = self.numerator*fraction.numerator
+		self.mulDen = self.denominator*fraction.denominator
+		self.mulgcd = self.gcf(self.mulNum,self.mulDen)
+
+		if self.mulgcd==0:
+			return MyFraction(0,0)
+		self.mulNum = self.mulNum // self.mulgcd
+		self.mulDen = self.mulDen // self.mulgcd
+		answer = MyFraction(self.mulNum,self.mulDen)
 		return answer
 
 	def __truediv__(self, fraction):
-		answer = "Calculate the answer. The answer will be a fraction"
+		self.divNum = self.numerator*fraction.denominator
+		self.divDen = self.denominator*fraction.numerator
+		self.divgcd = self.gcf(self.divNum,self.divDen)
+		if self.divgcd==0:
+			return MyFraction(0,0)
+		self.divNum = self.divNum // self.divgcd
+		self.divDen = self.divDen // self.divgcd
+		answer = MyFraction(self.divNum,self.divDen)
 		return answer
 
 	def gcf(self, x, y):
 		if x > y:
 			smaller = y
 		else:
 			smaller = x
+		gcd = 0
 		for i in range(1, smaller + 1):
 			if((x % i ==  0) and (y % i == 0)):
-				gcf = i
-		return gcf
+				gcd = i
+		return gcd
 

Fractions/Test.py

@@ -7,13 +7,13 @@ def main():
 	addResult = fraction1 + fraction2
 	print("Addition result was: " + str(addResult) + ". The correct answer is: 1/1 or 2/2")
 
-	#subResult = fraction2 - fraction1
-	#print("Subtraction result was: " + subResult + ". The correct answer is: 0/0")
+	subResult = fraction2 - fraction1
+	print("Subtraction result was: " + str(subResult) + ". The correct answer is: 0/0")
 
-	#multResult = fraction1 * fraction2
-	#print("Multiplication result was: " + multResult + ". The correct answer is: 1/4")
+	multResult = fraction1 * fraction2
+	print("Multiplication result was: " + str(multResult) + ". The correct answer is: 1/4")
 
-	#divResult = fraction1 / fraction2
-	#print("Division result was: " + divResult + ". The correct answer is: 1/1")
+	divResult = fraction1 / fraction2
+	print("Division result was: " + str(divResult) + ". The correct answer is: 1/1")
 
 main()