(1/2+1/3+1/6)*24:5-9/22:15/121 срочняк по действиям плз

1) 1/2+1/3 = 3+2/6 =5/6 2) 5/6+1/6 = 5+1/6=6/6=1 3) 1*24 = 24 4) 24:5 = 4,8 5) 9/ 22:15/121 = 9/22*121/15 = 9*121/22*15 = 1089/330 = 3,3 6) 4,8 - 3,3 = 1,5