10/21 divided by (-15/7)

Find the reciprocal of the divisor

Reciprocal of

15/7 : 7/15

Now, multiply it with the dividend

So, 10 / 21 : 15/7 = 10/21 * 7/15

= 10 * 7 / 21 * 15 = 70 / 315

After reducing the fraction, the answer is

2/9