(9+2/5) * 425 + 4.25 / (1/60)=(9+2/5) * 425 + 4.25 * 60=(9+2/5) * 425 + 4.25 * 60 * 100 / 100=(9+2/5) * 425 + 425 * 0.6=(9+2/5+0.6) * 425=42500