Вычислите: 1) 3/8+1/3, 2) 4 целых 3/16+5 целых 5/12 3) 3 целых 9/14+4 целых 13 /21

3/8+1/3=9/24+8/24=17/244 3/16+5 5/12= 4 9/48+5 20/48=9 29/483 9/14 + 4 13/21= 3 27/42 + 4 26/42= 7 53/42= 8 11/42