1/4 = 1/4 * 14/14 = 14/56,

5/7 = 5/7 * 8/8 = 40/56,

2/14 = 2/14 * 4/4 = 8/56,

3/28 = 3/28 * 2/2 = 6/56,

7/8 = 7/8 * 7/7 = 49/56

14/56,40/56,8/56,6/56,49/56.