简便计算:12÷3.75+12÷6.25

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 20:58:15
简便计算:12÷3.75+12÷6.25
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简便计算:12÷3.75+12÷6.25
简便计算:12÷3.75+12÷6.25

简便计算:12÷3.75+12÷6.25
原式=12x((4/15)+12x(4/25)
=12x4(1/15+1/25)
=48x(5/75+3/75)
=48x(8/75)
=16x(8/25)
=128/25.

12÷3.75+12÷6.25
=12÷30/8+12÷50/8
=12×4/15+12×4/25
=12x4x(1/15+1/25)
=48x(5/75+3/75)
=48x8/75
=128/25

12÷3.75+12÷6.25=12÷(3.75+6.25)=12÷10=1.2