direction: choose and write the letter of the correct answer ob the blank before the number.
__ 1. 3/5 + 1/5 =
a. 4/5 b. 4/5 c. 3/10 d. 2/5
__ 2. 3/7 + 1/4 =
a. 3/7 b. 4/28 c. 19/28 d. 3/11
__ 3. 6/7 - 3/7
a. 3/14 b. 5/7 c. 2/14 d. 3/7
__ 4. 2/5 - 1/4 =
a. 1/5 b. 3/20 c. 2/10 d. 1/20
__ 5. 4/10 + 2/10 =
a. 3/5 b. 8/10 c. 6/10 d. 6/20​