Question

2/5.(-1/4)ao cubo -1/8 me ajudem

Answer 1

2÷5. -1÷16.4 -1÷8
2÷ 5. -1÷64 -1÷8
-2÷5.64 - 1÷8
-2÷ 320 -1÷8
-1÷160 -1÷8
M.M.C160,8 : 2
80, 4 : 2
40, 2 : 2
20, 2 : 2
10, 1. : 2
5, 1. : 5
1,1.


-1÷160 - 1÷8 = -1÷160 - 20÷160= -21÷160.