1) 7/12 + 5/6 = 7/12 + 10/12 = 17/12 2) 17/12 : 17/24 = 17/12 * 24/17 = 2
1) 7/12 +5/6 = 7/12 +10/12 = 17/12
2) 17/12 * 24/17 = 1/1 * 2/1 = 2