Tolong di bantu ya yang no 2 sama 3

2.) a. 4/9+2/9 = 6/9 = 2/3
b. 3/6 + 5/6 = 8/6 = 1 2/6 = 1 1/3
c. 2 1/3 + 3/4 = 2 4/12 + 9/12 = 2 13/12 = 3 1/12
d. 2/3 + 3 5/9 = 4/9 + 3 5/9 = 3 9/9 = 4
e. 2/3 + 2 1/2 + 3 1/4 = 8/12 + 2 6/12 + 3 3/12 =
5 17/12 = 6 5/12

3.) a. 2/15 – 1/2 + 3/10 = 4/30 – 15/30 + 9/30 =
– 2/30 = – 1/15

maaf cuma sampai situ