5/6 * 9/10 = 1/2 * 3/2 = 3/4
3 3/4 * 1 5/9 = 15/4 * 14/9 = 5/2 * 7/3 = 35/6 = 5 5/6
4/9 * 1 1/2 = 4/9 * 3/2 = 2/3 * 1/1 = 2/3
2 2/7 * 9/24 = 16/7 * 9/24 = 2/7 * 9/3 = 18/21 = 6/7
1 4/5 * 5/12 = 9/5 * 5/12 = 3/1 * 1/4 = 3/4
7/20 * 10/21 = 1/2 * 1/3 = 1/6
1 1/2 * 1 1/3 = 3/2 * 4/3 = 1/1 * 2/1 = 2
2 2/3 * 1 1/5 = 8/3 * 6/5 = 8/1 * 2/5 = 16/5 = 3 1/5
2 1/6 * 1/13 = 13/6 * 1/13 = 1/6 * 1/1 = 1/6
9/14 * 7/15 = 3/2 * 1/5 = 3/10
1/3 * 2 1/4 = 1/3 * 9/4 = 1/1 * 3/4 = 3/4
3 1/5 * 3/4 = 16/5 * 3/4 = 4/5 * 3/1 = 12/5 = 2 2/5
Co prawda trzeba skreślać, ale ja pisałem po znaku równości.
