2) (2 3/7 + 1 1/2) : 5/7 = 5 1/2
1) 2 3/7 + 1 1/2 = 2 6/14 + 1 7/14 = 3 13/14
2) 3 13/14 : 5/7 = 55/14 * 7/5 = 11/2 = 5 1/2
4) (10 - 2 2/3) : 4 8/9 = 1 1/2
1) 10 - 2 2/3 = 9 3/3 - 2 2/3 = 7 1/3
2) 7 1/3 : 4 8/9 = 22/3 : 44/9 = 22/3 * 9/44 = 1/1 * 3/2 = 3/2 = 1 1/2