Question

Como calcular


1) 1/4+1/5+1/2=
2) 1/3+1/2+1/4=

Answer 1

1/4 + 1/5+1/2

1+1+1/20
5 +4 + 10
9 +10
19

1/3 +1/2 +1/4

1 +1 +1/12
4 +6 +3
10 + 3
13