Question

问几道题

3.5*(5/4)+125%+(3/2)/(4/5)
12.5*（36减5分之36）除以3.6
3分之20除以（5分之22减15分之56）乘以90％
（5/23加5/25除以1/3）乘以25％
麻烦都把过程写出来
能简便就简便

Answer 1

3.5*(5/4)+125%+(3/2)/(4/5)
=(3.5+1+1.5)×(5/4)
=6×(5/4)
=7.5

3分之20/（5分之22减15分之56）乘以90％
=20/3÷(66/15-56/15) ×9/10
=(20/3×9/10)/(10/15)
=(2/3)÷(2/3)
=1

（5/23加5/25除以1/3）乘以25％
=(5/23+15/25)×0.25
=(5×25+15×23)/(23×25) ÷4
=470/575÷4
=235/1150=47/230

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