(74+1/4+1/5+1/6)/(1/4+1/5+1/6)
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(74+1/4+1/5+1/6)/(1/4+1/5+1/6)
(74+1/4+1/5+1/6)/(1/4+1/5+1/6)
(74+1/4+1/5+1/6)/(1/4+1/5+1/6)
[(74*60+15+12+10)/60]/[(15+12+10)/60]=(4477/60)*(60/37)=121
[(74*60+15+12+10)/60]/[(15+12+10)/60]=(4477/60)*(60/37)=121