8/38*5.7+2.5/3 简便计算

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8/38*5.7+2.5/3简便计算8/38*5.7+2.5/3简便计算8/38*5.7+2.5/3简便计算8/38*5.7+2.5/3=5.7/38*8+2.5/3=1.5*8+2.5/3=12+5

8/38*5.7+2.5/3 简便计算
8/38*5.7+2.5/3 简便计算

8/38*5.7+2.5/3 简便计算
8/38*5.7+2.5/3
=5.7/38*8+2.5/3
=1.5*8+2.5/3
=12+5/6
=12又5/6