理论是可以写无数种
1/12=2/24=1/24+1/241/12=3/36=1/36+1/36+1/361/12=4/48=1/48+1/48+1/48+1/48……有无数种。
1/12=2/24=1/24+1/24,1/12=3/36=1/36+2/36=1/36+1/18,1/12=4/48=1/48+1/16,1/12=5/60=1/60+1/15,1/12=7/84=1/84+1/14,