Question

What should be addedd to -5/7to get -4/15

Answer 1

Answer:

Step-by-step explanation:

Let the no. =x

-5/7+x=-4/15

-5/7+4/15=x

-5/7= - 75/105

4/15=28/105

(-75+28)/105= -x

-37/105= -x

37/105=x

Therefore the number =37/105

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Answer 2

Step-by-step explanation:

let the number = x

$so \\ - \frac{ 5}{7} + x = - \frac{4}{15}$

$- \frac{5}{7} + \frac{4}{15} =x \\ \\ \frac{ - 75 + 28}{105} = x \\ \ - \frac{ 47}{105} = x$