19/42+6/7,3/32+5/8,3/8+1/56
19\42+6\7 = 19\42+36\42 = 55\42 = 1 13\42 3\32+5\8 = 3\32+20\32 = 23\32 3\8+1\56 = 21\56+1\56 = 22\56 = 11\28