3 1/8 : 5/16 - 2 1/3 * 3 2/7 = 2 1/3
25/8 * 16/5 = 5/1 * 2/1 = 10
2 1/3 * 3 2/7 = 7/3 * 23/7 = 1/3 * 23/1 = 23/3 = 7 2/3
10 - 23/3 = 9 3/3 - 7 2/3 = 2 1/3
3 1/8 : 5/16 - 2 1/3 * 3 2/7 = 2 1/3
25/8 * 16/5 = 5/1 * 2/1 = 10
2 1/3 * 3 2/7 = 7/3 * 23/7 = 1/3 * 23/1 = 23/3 = 7 2/3
10 - 23/3 = 9 3/3 - 7 2/3 = 2 1/3