Respostas

2014-07-15T15:36:42-03:00
1/2 + 1/3 + 5/4
Iguala-se os denominadores pelo mmc:
mmc (2,3,4) = 12
12/2 = 6 -> 6*1 = 6
12/3 = 4 -> 4*1 = 4
12/4 = 3 -> 3*5 = 15

6/12 + 4/12 + 15/12 = 25/12