8/16=1/28/8=1=2/212/8=3/224/12=2=4/260/24=5/2?/60=6/2答案为180
16乘以1/2=88乘以1=88乘以3/2=1212乘以2=2424乘以5/2=6060乘以3=180所以最后等于180