Question

1/2 + 2/5
7/2 + 2/3
2 + 1/4
3/10 - 1/5
​

Answer 1

Resposta:

1/2 + 2/5  = 5/10 + 4/10 = 5 + 4/10 = 9/10 = 3/2,5 = 0,9

7/2 + 2/3  = 21/6 + 4/6 = 21 + 4/6 = 25/6 = 4,16

2 + 1/4  = 3/4 = 0,75

3/10 - 1/5 = 3/10 - 2/10 = 3-2/10 = 1/10 = 0,1