Question

a) 2/3+ 1/2
b) 1/30+ 9/30
c) 8/15−2/15
d) 1/5+ 2/15 +3/25
e) 2+ 4/9−11/6
e) (3/4−1/2) −3/20
f) (2/3+1/6) − (1 −3/10)

Answer 1

Resposta:

A- 3/5

B- 10/60

C- 10/30

D- 6/45

E- (4/6) - 3/20 = 1/-14

F- (3/9) - (acho que falta algo)