Question

what should be added to twich of the rotianol number -5/3 to get -9/7​

Answer 1

Let the number be x.

-5/3+x=-9/7

x= -9/7-(-5/3)

x= -9/7+5/3

x= -27+35/21

x=8/21.

Hence the number is 8/21.

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