(7/15-3 /40-1/24): 0,7*1 5/6 3/4-1 2/3) (2,4*1/3-3)*5/11 (4/9-5/12+0,75)*3/7

(7/15-3 /40-1/24): 0,7*1 5/6 3/4-1 2/3) (2,4*1/3-3)*5/11 (4/9-5/12+0,75)*3/7=(56-9-5) /120): 7/10*11/6 9-20) /12)*(24/10*1/3 -3)*5/11*(4/9-5/12+75/100)*3/7=(42*10*11*5*3) / (120*7*6*11*7) -11/12)*(24/30 -3)*(4/9 — 5/12+3/4)=(5*11*6) / (28*12*30)*28/36=11/432