Question

x:(1/12+1/60)=25:1/12怎么解

Answer 1

x:(1/12+1/60)=25:1/12

x:(5/60+1/60)=25:1/12

x: 6/60=25:1/12

x:1/10=25:1/12

(1/12)x=25×(1/10)

x=25×(1/10)÷(1/12)

x=30