Question

Calcule e simplifique se possível?
a) 10/5 - 3/6
b) 6/7-1/3+4/3

Answer 1

a) 10/5 - 3/6
m.m.c.(5, 6) = 30
60/30 - 15/30
45/30 = 3/2.

b) 6/7 - 1/3 + 4/3
6/7 + 3/3
m.m.c.(3, 7) = 21
18/21 + 21/21
39/21 = 13/7.