Вычислите: 1,3+ 2 11/15-1/3
1,3 + 2 11/15 - 1/3 = 13/10 + 41/15 - 1/3= = 39/30 + 82/30 - 10/30 = 111/30 = 3 21/30 = = 3 7/10 = 3,7