вычислите (3ц1/3+5ц1/6)×2/5-2ц

(3 1/3 + 5 1/6) * 2/5 - 2 = (10/3 + 31/6) * 2/5 - 2 = (20/6 +31/6) * 2/5 - 2 = 51/6 * 2/5 - 2 = (51*2)/(6*5) - 2 = 51/15 - 2 = 3 6/15 - 2 = 1 6/15