计算:(2.5×4/5)÷(1/4×0.8)-0.75÷3/40=_.
问题描述:
计算:(2.5×
)÷(4 5
×0.8)-0.75÷1 4
=______. 3 40
答
(2.5×
)÷(4 5
×0.8)-0.75÷1 4
,3 40
=2÷0.2-
×3 4
,40 3
=10-10,
=0.
故答案为:0.