please explain step by step the right answer is 1 1/7
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a. 3/7 + 5/7
= 8/7
b. 4/5 + 3/5
= 7/5
*Note: If the denominators are same then no need to find l.c.m.
Here, In the first case, It's 3/7 + 5/7
Both the denominators are same; So no needto do any other calculations.
Just do the addition directly.
Hope it helps you!
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