630:(36+6) ? 630:42
630:42 = 630:42, т.к.
15 = 15
630:(36+6)
1) 36+6=42
2) 630:42=15
630:42=15
630:(36+6)=630:42
15=15
630:(36+6) ? 630:42
630:42 = 630:42, т.к.
15 = 15
630:(36+6)
1) 36+6=42
2) 630:42=15
630:42=15
630:(36+6)=630:42
15=15