Resposta :
Resposta:
a )
1/2 + 1/3
3/6 + 2/6
5/6
b)
1/2 + 1/13 + 5/6
39/78 + 6/78 + 13/78
58/78
29/39
c)
5/6 -1/2
10/12 - 6/12
4/12
1/3
Resposta:
a )
1/2 + 1/3
3/6 + 2/6
5/6
b)
1/2 + 1/13 + 5/6
39/78 + 6/78 + 13/78
58/78
29/39
c)
5/6 -1/2
10/12 - 6/12
4/12
1/3