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What should be added twice the rational number -7/3 to get 3/7 ? ​

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10 votes


\qquad \qquad\huge \underline{\boxed{\sf Answer}}

let the required number be ' x '

Now, let's form a equation as per the question ~


\qquad \sf  \dashrightarrow \: - \bigg(( 7)/(3) * 2 \bigg ) + x = (3)/(7)


\qquad \sf  \dashrightarrow \: - ( 14)/(3) + x = (3)/(7)


\qquad \sf  \dashrightarrow \: x = (3)/(7) + (14)/(3)


\qquad \sf  \dashrightarrow \: x = (9 + 98)/(21)


\qquad \sf  \dashrightarrow \: x = (107)/(21)

User Bert Bristow
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