Question

Calcule:
1/5+(1/4.0,2)=?

Answer 1

1/5 + (1/4. 0,2) =
                     ↓
1/5 + (1/4.2/10) =
                 ↓
1/5 + (1.2/4.10) =

1/5 + 2/40 =        (Simplificar 2/40 = 1/20)

1/5 + 1/20 =

mmc: 20

1.4/20 + 1/20 =

4/20 + 1/20 =

(4+1)/20 = 5/20 = 1/4