Question

ALGUÉM ME AJUDA??!!!

2/5 + 1 1/12

1/2 - 1/12 + 7/15

preciso das contas :'c

Answer 1

2/5 + 1 1/12
2/5 + 1•12+1/2
2/5 + 13/2. ===> *(10/10)
20/5 + 130/2 / 10
4 + 65 / 10
69/10

1/2 - 1/12 + 7/15 ===> *(60/60)
60/2 - 60/12 + 7*60/15 / 60
30 - 5 + 28 / 60
53/60