Вычислите: 1) 1 - 17/29; 2) 4 - 7/19; 3) 13 - 7 3/16; 4) 15 - 12 16/17

1) 1 - 17/29 = 29/29 - 17/29 = 12/29; 2) 4 - 7/19 = 3 19/19 - 7/19 = 3 12/19; 3) 13 - 7 3/16 = 6 - 3/16 = 5 16/16 - 3-16=5 13/16; 4) 15 - 12 16/17 = 3 - 16/17 = 2 17/17 - 16/17 = 2 1/17.