Question

sum of two rational numbers is3/5.If one of them is -2/7 find the other

Answer 1

-2/7+x=3/5
x=3/5+2/7
=21/35+10/35
=31/35
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Answer 2

Hey

Here is your answer,

Let the unknown number be x.

X + (-2/7) = 3/5
X = 3/5 + 2/7
X = 21+10/35
X = 31/35

Therefore, the unknown number is 31/35.

Hope it helps you!