What is 9/10 ÷ 2/5

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.

The reciprocal of 2/5 is 5/2.

So, 9/10 ÷ 2/5 = 9/10 x 5/2

To multiply the fractions, we multiply the numerators and multiply the denominators:

(9 x 5) / (10 x 2) = 45/20

To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 5:

45/20 = (45 ÷ 5) / (20 ÷ 5) = 9/4

Therefore, 9/10 ÷ 2/5 equals 9/4.