5/8*92+7*0.625+62.5% (2/3—1/4)除(1/6+12.5)
问题描述:
5/8*92+7*0.625+62.5% (2/3—1/4)除(1/6+12.5)
答
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;
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