5.4×0.75÷1点70÷1.25÷8怎么简便计算?

2024-12-03 14:32:05
推荐回答(2个)
回答1:

5.4X0.75÷1.70÷1.25÷8
=2.7X2X0.75÷(1.25X8)÷1.7
=2.7X1.5÷10÷1.7
=(3X1.5-0.3X1.5)÷(10X1.7)
=(4.5-0.45)÷17
=4.05÷17
=405/1700
=81/340
=340分之81

回答2:

5.4×0.75÷1.7÷1.25÷8
=4.05÷1.7÷(1.25×8)
=2.38÷10
=0.238