Question

Nhân, chia hai số hữu tỉ : 0 , 8 : − 2 4 5 ⋅ − 5 2 2

Answer 1

0 , 8 : − 2 4 5 ⋅ − 5 2 2 = 4 5 : − 14 5 . 25 4 = 4 5 . − 5 14 . 25 4 = − 25 14