сравните дробь 5/8 и 3/4, 4/9 и 3/8

5/8 3/4 =5/8 6/8= 5/8 < 6/8 значит 5/8 < 3/44/9. 3/8=32/72 27/72=32/72 > 27/72 значит 4/9 > 3/8.