4 7/12 + 35/2 - 81/5= 4 7/12 + 175/10 - 162/10 = 55/12 + 13/10 = 275/60 + 78/60 =
353/60= 5 53/60
191/3 + 25/8 - 2 4/9 = 1528/24 + 75/24 - 22/9 = 1603/24 -22/9 = 4809/72 - 176/72 =
4633/72 = 64 25/72
