5/8*92+7*0.625+62.5%
=0.625×(92+7+1)
=0.625×100
=62.5;
（2/3—1/4）除（1/6+12.5）
=(8/12-3/12)÷(1/6+75/6)
=(5/12)÷(76/6)
=(5/12)×6/76
=5/152;
如果本题有什么不明白可以追问,
5/8*92+7*0.625+62.5% （2/3—1/4）除（1/6+12.5）
1个回答
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