Question

To divide a number by a fraction is to multiply it by the reciprocal of the fraction.

Answer 1

Answer:

Dividing by the numerator and multiplying by the denominator can be completed in one step (multiply by original denominator over original numerator); this new thing is called the reciprocal.

Answer 2

The reason we multiply by the reciprocal of the divisor when dividing fractions is due to the definition of a division problem,