Question

What is the value of this expression?

2/3 + (-5/7)

Answer 1

`(2)/(3) + ( - (5)/(7) ) \\ = (2 * 7 - 5 * 3)/(21) \\ = (14 - 15)/(21) \\ = ( - 1)/(21)`

Answer:

`( - 1)/(21)`

Hope you could understand.

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