2/5 и 1/20 = 8/20 и 1/20
7/12 и 5/24 = 14/24 и 5/24
2/3 и 3/4 = 8/12 и 9/12
1/7 и 5/8 = 8/56 и 35/56
2/11 и 3/10 = 20/110 и 33/110
2/3 и 4/27 = 18/27 и 4/27
2/5 и 1/20 = 8/20 и 1/20
7/12 и 5/24 = 14/24 и 5/24
2/3 и 3/4 = 8/12 и 9/12
1/7 и 5/8 = 8/56 и 35/56
2/11 и 3/10 = 20/110 и 33/110
2/3 и 4/27 = 18/27 и 4/27