Question

Express -42/98 as a rational number with denominator 7

Answer 1

42/98. by cutting 7 from both.
=6/14. by cutting 2 from both
=3/7 and we get answer

Answer 2

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$to \: get \: denominator \: 7 \: we \: ust \: divdide \: 49 \: by \: 7 \\ \\ therefore \: \binom{42 \div 7}{98 \div 7} = \binom{ - 6}{13} \\ hence \: \binom{ - 6}{13} \: is \: the \: required \: number$
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