Question

Calcule:
a)1/2+3/7
b)-2/3+4/9



ME AJUDAAA

Answer 1

Resposta:

a) 1/2 + 3/7 = (7.1 + 3.2)/14

1/2 + 3/7 = (7.1 + 3.2)/141/2 + 3/7 = (7 + 6)/14

1/2 + 3/7 = (7.1 + 3.2)/141/2 + 3/7 = (7 + 6)/141/2 + 3/7 = 13/14.

b) 2/3 + 4/9 = (-2.3 + 4.1)/9

2/3 + 4/9 = (-2.3 + 4.1)/9-2/3 + 4/9 = (-6 + 4)/9

2/3 + 4/9 = (-2.3 + 4.1)/9-2/3 + 4/9 = (-6 + 4)/9-2/3 + 4/9 = -2/9.