(1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30)

(1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30)
(1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30)

(1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30)
(1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30)
=(30/60+15/60+10/60+6/60+5/60+1/60)/(1+10/30+6/30+3/30+2/30+1/30)
=67/104

(1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30)
=(30/60+15/60+10/60+6/60+5/60)/(1+10/30+6/30+3/30+1/30)
=(66/60)/(5/3)
=(22/20)/(5/3)
=33/50

通分,1/2=30/60,1/4=15/60,1/6=10/60,1/10=6/60,1/12=5/60.再加
前面得67/60.后面一样