Question

What must be added to -7/20 to get -2/5?.

Answer 1

Answer:

-1/20

Step-by-step explanation:

let unknown be x

-7/20 + x = -2/5

-2/5 - -7/20 = x

-8/20 + 7/20 = x

-1/20 = x

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Answer 2

Step-by-step explanation:

Let the no = x

ATQC.

x + (-7/20) = - 2/5

x = - 2/5 + 7/20

x = (- 8+7)/20

x = - 1/20