Question

Efetue as adicoes e as subtracoes (escrevendo o resultado na forma irredutivel)

1/2 + 5/9
7/8 +1/2+3/4
2 +7/9 - 5/6
2/10+1/4+3/8
6/5-3/4
3-3/2+1/6
10/7-5/6
5/12+3+4/5/6

OBRIGADO ✌️

Answer 1

1/2 + 5/9 = 19/18
7/8 + 1/2 + 3/4 = 17/8
2+7/9-5/6= 35/18
2/10+1/4+3/8=33/40
6/5-3/4=9/20
3-3/2+1/6=17/6
10/7-5/6=25/42
Não entendi a última!?!