Homework 8 : Fraction Multiplication

Write a program to implement a method that can multiply 2 fractions. You will implement a class called Fraction consisting of a numerator and a denominator. The multiplication of
2 fractions should be equal to a fraction.
Use 1/2 * 1/3 as the test.

Hints:
Fraction f1, f2;
f1।multiply(f2);

兩數相乘後利用輾轉相除法取分子、分母的最大公因數進行約分




1/2 * 1/3 = 1/6

8/7 * 3/4 = 6/7