4/1乘0.75-0.25乘3/8+25%乘1/8简便计算,

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4/1乘0.75-0.25乘3/8+25%乘1/8简便计算,
4/1乘0.75-0.25乘3/8+25%乘1/8简便计算,

4/1乘0.75-0.25乘3/8+25%乘1/8简便计算,
4/1乘0.75-0.25乘3/8+25%乘1/8简便计算,要过程.
1/4×0.75-0.25×3/8+25%×1/8
=1/4×(0.75-3/8+1/8)
=1/4×1/2
=1/8