6/7 ÷ 2 = 6/7 * 1/2 = 6/14 = 3/7
1/7 ÷ 2 = 1/7 * 1/2 = 1/14
15/11 ÷ 5 = 15/11 * 1/5 = 15/55 = 3/11
17/11 ÷ 5 = 17/11 * 1/5 = 17/55
6/7 ÷ 2 = 6/7 * 1/2 = 6/14 = 3/7
1/7 ÷ 2 = 1/7 * 1/2 = 1/14
15/11 ÷ 5 = 15/11 * 1/5 = 15/55 = 3/11
17/11 ÷ 5 = 17/11 * 1/5 = 17/55