1/4 и 1/6=3/12 и 2/12=3/12>2/12=1/4>1/6
5/6 и2/9=15/18 и 4/18=15/18>4/18=5/6>2/9
2/15 и 3/10 =4/30 и 9/30= 4/30<9/30=2/15<3/10
5/12 и 3/8 =10/24 и 9/24 =10/24>9/24=5/12>3/8
3/5 2/3= 9/15 и 10/15=9/15<10/15=3/5<2/3
7/30 и 3/10=7/30 и 9/30=7/30<9/30=7/30<3/10
