Three and five-sevenths is the same as 26/7, so the reciprocal is 7/26.
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7/9
18/7...not
-42 / 7/3 = -18 To divide by a fraction, you multiply by the reciprocal of the fraction. the reciprocal of seven thirds is three sevenths. Negative 42 times three sevenths equals negative 18.
Expressed as a top-heavy fraction, the reciprocal of 7/8 is equal to 8/7 or eight sevenths.
When dividing by a fraction, it can be easier to multiply by the reciprocal instead: 5/(4/7) is the same as (5)*(7/4) which is (35/4) = 8 (1/4) = 8.25