Respostas

2014-08-04T18:17:18-03:00
80 - 1/5

mmc

400 - 1 /5

= 399/5

ou em decimal

= 79,8


2014-08-04T18:21:25-03:00
80 - 1 / 5
80 - 1 = 79
79 / 5
75 15
4
40 8
0