3/10 + (-1/3)

Subtract.

10. 14 - (-8)

13. 2/3-3/2

See below in bold.

Step-by-step explanation:

3/10 + (-1/3)

= 3/10 - 1/3

Convert the fractions to denominator 30:

= 9/30 - 10/30

= - 1/30.

10. 14 - (-8)

= 14 + 8

= 22.

13. 2/3 - 3/2

The least common denominator is 6 so we have:

= 4/6 - 9/6

= - 5/6.