Question

ME AJUDA é FRAÇÃO

1)EFETUE E SIMPLIFIQUE ?

a) 3/15 + 1/5 - 2/10?

B) 4/18 - 1/36 + 1/4 ?

C) 4/16 - 2/8 +1/5 ?

D) 2 +1/4?

Answer 1

a) 3/15 + 1/5 - 2/10
3/15 + 3/15 - 2/10
6/15 - 2/10
12/30 - 6/30 = 6/30 = 1/5

B) 4/18 - 1/36 + 1/4 
8/36 - 1/36 + 1/4
7/36 + 1/4
7/36 + 9/36 = 16/36 = 8/18 = 4/9

C) 4/16 - 2/8 +1/5 
4/16 - 4/16 + 1/5
0 + 1/5 = 1/5

D) 2 +1/4
2/1 + 1/4
8/4 + 1/4 = 9/4