1/10+7/241/10+7/241/10+7/24:2:75 = 12/120+35/12012/120+35/12012/120+35/120:2:75 = 47/120:2:75 = 47/120*1/2*1/75 = 47/18000
1/10+7/241/10+7/241/10+7/24:2:75 = 12/120+35/12012/120+35/12012/120+35/120:2:75 = 47/120:2:75 = 47/120*1/2*1/75 = 47/18000