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Your task is to complete the function **addFraction ** which adds the two fractions and prints the resulting fraction. The function takes four arguments num1, den1, num2, den2 where num1, num2 denotes the numerators of two fractions and den1, den2 denotes their denominators.

**Input:**

The first line of input contains an integer T denoting the number of test cases . Then T test cases follow . Each test case contains four integers num1, den1, num2, den2 respectively .

**Output:**

For each test case output will be the fraction in the form a/b where the fraction denotes the sum of the two given fractions in reduced form.

**Constraints:**

1<=T<=100

1<=den1,den2,num1,num2<=1000

**Example:
Input**

1

1 500 2 500

3/500

In above test case 1/500+2/500=3/500

**Note:**The **Input/Ouput** format and **Example** given are used for system's internal purpose, and should be used by a user for **Expected Output** only. As it is a function problem, hence a user should not read any input from stdin/console. The task is to complete the function specified, and not to write the full code.