Question

Calcule as frações: 7/12+5/18. 1/2+1/6+5/6. 3/2+2/3. 1/1+9/9

Answer 1

7/12+5/18= 31/36

1/2+1/6+5/6=3/2

3/2+2/3=13/16

1/1+9/9= 2