Question

4/9 + 5/9= ??

4/10 + 4/10=??

5/15 + 4/15 +3/15=??

4/12 + 2/12 + 3/12=??

4/7+3/7+5/7=??

3/11+1/11+6/11+2/11=??

1/9+3/9+7/9+8/9=??

Answer 1

Resposta:

8/10

12/15

12/7

12/11

19/9