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Mathematics

Find the reciprocal (multiplicative inverse) of:

83×137\dfrac{-8}{3} \times \dfrac{13}{-7}

Rational Numbers

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Answer

83×137=8×133×7=10421=10421\dfrac{-8}{3} \times \dfrac{13}{-7}\\[1em] =\dfrac{-8 \times 13}{3 \times -7}\\[1em] =\dfrac{-104}{-21}\\[1em] =\dfrac{104}{21}

The multiplicative inverse of 10421\dfrac{104}{21} = reciprocal of 10421\dfrac{104}{21} = 21104\dfrac{21}{104}.

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