9.8除以1又3分之1 2又5分之1乘0.75 六年级数学?

9.8÷1又3/1+2又5/1×0.75简算
2024-11-16 23:55:51
推荐回答(1个)
回答1:

9.8÷1又1/3+2又1/5x0.75
=9.8x3/4+2.2x3/4
=(9.8+2.2)x3/4
=12x3/4
=9