e-olymp
Competitions

Week 10: January 18 - 24

Fractions: multiplication and division

Two fractions are given. Find their product or quotient.

Input

Each line contains an example of multiplication or division of fractions. The numerator and denominator of each fraction is a positive integer, not greater than 109.

Output

For each input example, print in a separate line the answer in the form of an irreducible fraction.

Time limit 1 second
Memory limit 128 MiB
Input example #1
2/3 * 5/6
1/2 / 4/5
7/8 * 11/41
7/1 / 3/7
Output example #1
5/9
5/8
77/328
49/3
Author Michael Medvedev