Question

What should be added to twice of the rational number -5/3 to get -9/7? 
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Answer 1

Answer:

We have to add 43/21 to the double of -5/3 {-5/3*2 = -10/3}

Explanation:

as per given  qn .

                  -10/3+x= - 9/7

                   or, x= - 9/7 + 10/3

                   or, x =43/21