(x - 12 23/40) + 5 8/15 = 13 19/24
x = 12 23/40 + 13 19/24 - 5 8/15
x = 20 + (23/40 + 19/24 - 8/15)
x = 20 + (69 + 95 - 64)/120
x = 20 5/6
(98,631-45,231)/(19,781+0,219)=53,4/20=2,67
(466-х)*12=1236
466-х=1236:12
466-х=103
х=466-103
х=363
НОК (35,70)= 2*5*7=70
НОК (56,112)=2*2*2*2*7=112