What should be added to thrice the rational number -7/3 to get 3/7

let the number be x.

x +3(-7/3)=3/7

x +(-7)=3/7 --------we got -7 because we multiplied 3 and -7/3

x=3/7 + 7---------sign changes because we bought -7 to the other side

therefore, x = 52/7 or 7 3/7

hence,the number is 52/7 or 7 3/7

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