360:6*5-450:(25*2)-70*6:3=151

360 / 6 = 60;

60 * 5 = 300;

25 * 2 = 50;

450 / 50 = 9;

300 - 9 = 291;

70 * 6 = 420;

420 / 3 = 140;

291 - 140 = 151.