Question

what must be subtracted from 42/5 get 17/5

Answer 1

here is the answer is 25/5 or 5 because of denominator is same we subtract directly (42-17)to get answer.

Answer 2

Let

The No. be x

$\frac{42}{5} - x = \frac{17}{5} \\ \frac{42}{5} - \frac{17}{5} = x \\ x = \frac{42 - 17}{5} \\ x = \frac{25}{5} \\ x = 5$
when we subtract 5 from 42/5
then we get 17/5


THANKS☺️