7/2×5/8-3/2÷8/5的简便计算
7/2×5/8-3/2÷8/5
=7/2×5/8-3/2×5/8
=（7/2-3/2）×5/8
=2×5/8
=5/4=1.25
7/2×5/8-3/2÷8/5
= 7/2×5/8-3/2×5/8
=（7/2-3/2）×5/8
=2×5/8
=5/4
7/2×5/8-3/2÷8/5
=（7/2-3/2）x5/8
=2*5/8
=5/4
=7/2*5/8-3/2*5/8
=（7/2-3/2）*5/8
=2*5/8
=5/4
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