Question

1/3+1/4=
3/4-2/3=
Alguem pode me ajudar?

Answer 1

1/3 + 1/4 =
3.4 = 12
3+4 = 7
7/12

3/4 - 2/3
3-2 = 1
3.4 = 12

1/12

Answer 2

1/3 + 1/4 =
m.m.c =12
4/12 +3/12= 7/12

3/4 - 2/3 =
m.m.c =12
9 /12 - 8 /12 =1 /12