1.3乘以35%加70%除以7分之20
问题描述:
1.3乘以35%加70%除以7分之20
像以上类似的计算题两三道
1.3乘以35%加70%除以7分之20
=1.3X0.35+0.7乘以二十分之七
=1.3X0.35+0.7X0.35
=0.35X(1.3+0.7)
=0.35X2
=0.7
答
1.3乘以35%加70%除以7分之20
=13/10*7/20+7/10*7/20
=7/20*(13/10+7/10)
=7/20*2
=7/10是类似的题O