4/5乘7又3/8+2.625除以1又1/4,怎么简算?

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4/5乘7又3/8+2.625除以1又1/4,怎么简算?
4/5乘7又3/8+2.625除以1又1/4,怎么简算?

4/5乘7又3/8+2.625除以1又1/4,怎么简算?
4/5×7/3/8+2.625÷1/1/4
=0.8×7/3/8+2/5/8×0.8
=0.8×（7/3/8+2/5/8）
=0.8×10
=8