Working Together

Difficulty: 1100 2000 ms 128 MB

math

Alone, worker A finishes the job in A hours and worker B in B hours. Working together at combined constant rates, the whole job takes AB/(A+B) hours — print it as an exact reduced fraction p/q.

Input: one line with two integers A and B.

Output: the reduced fraction p/q.

Constraints:

• 1 ≤ A, B ≤ 10⁹

Sample Tests

6 3

2/1

5 5

5/2

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