1. if you add 5/6, 3/4 and 2/12, what is the answer?
a. 21/12 b.1 3/4 c.7/4 d.1 8/12

2. add 2/7 and 2/3,what is the sum?
a.20/12 b.4/21 c.2/7 d.4/10

3. if you subtract 5/15 from 10/15, the difference is ___________
a.3/5 b.1/5 c.5/15 d.1/3