Вычислите: 4:16/19+3*5/12-3*13/24

4 : 16/19 = 4 * 19/16 = 19/4

3 * 5/12 = 15/12 = 5/4

3 * 13/24 = 39/24 = 13/8

19/4 + 5/4 - 13/8 = 24/4 - 13/8 = 6 - 13/8 = 48/8 - 13/8 = 35/8