1 3/7 + 1 5/7 = 3 1/7
How to solve:
* Add whole numbers ( 1 + 1) and add numerators ( 3 + 5) Never add the denominators
*The answer will give you 2 8/7, but that's not write so I add 1 to 2 to make it 3 and make the numerator 1 so now the answer is 3 1/7
