How do you subtract -1/10-2/5?

Nov 23, 2016

$- \frac{1}{2}$

Explanation:

Adding or subtracting with fractions requires a common denominator. In this case it will be 10.
Make equivalent fractions.

$- \frac{1}{10} - \frac{2}{5} \times \frac{2}{2}$

$= \frac{- 1 - 4}{10}$

=$- \frac{5}{10}$

=$- \frac{1}{2}$