2 1/8+3 5/12
5 13/15+1 7/12
7 3/8-3 5/6
найти значение выраений

5 13/24 7 9/20 3 13/24

21/8+35/12=(63+70)/24=133/24
5 13/15+ 1 7/12 = 88/15+19/12=(352+95)/60=447/60
7 3/8- 3 5/6=59/8-23/6=(177-92)/24=85/24