48*(7/12+5/600)除以2/3 1/8+(1/8+1/30)*1548*(7/12+5/600)除以2/3 1/8+(1/8+1/30)*15

问题描述:

48*(7/12+5/600)除以2/3 1/8+(1/8+1/30)*15
48*(7/12+5/600)除以2/3 1/8+(1/8+1/30)*15

用计算器

括号内通分在按顺序计算就行了,小学的四则混合运算。

48*(7/12+5/600)/(2/3)
=48*(7/12+5/600)*3/2
=24*(7/12+5/600)*3
=42+360/600
=42.6
1/8+(1/8+1/30)*15
=(15/8+1/8+1/30)*15
=(2+1/30)*15
=30.5

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