Sprowadź ułamki do współnego mianownika i porównaj je a) 1/2 i 10/16, 2/5 i 9/10, 11/14 i 3/7 b) 5/12 i 3/8, 9/16 i 5/9, 4/15 i 16/45 c) 12/13 i 3/7, 7/24 i 15/72, 5/21 i 44/126 d) 3/5 i 7/8, 21/54 i 13/27, 5/12 i 7/18 e) 4/10 i 1/4, 11/30 i 1/2, 19/

a)1/2 = 8/16 ,  10/16 =10/16    1/2 < 10/162/5 = 4/10 , 9/10 = 9/10        2/5 < 9/1011/14 = 11/14 , 3/7 = 6/14     11/14 > 3/7b)5/12 = 10/24 , 3/8 =  9/24      5/12 > 9/249/16 =81/144, 5/9 = 80/144   9/16 > 5/94/15 = 12/45 , 16/45 = 16/45  4/15 < 16/45c) 12/13 = 72 /77 ,  3/7 = 33/77   12/13 > 3/77/24 = 21/72 , 15/72                7/24 >  15/725/21 = 30/126 , 44/126             5/21 < 44/126 d) 3/5= 24 /40,  7/8= 35 /40         3/5 < 7/821/54 , 13/27= 26/54             21/54 < 13/275/12= 15/36 , 7/18 = 14/36     5/12 > 7/18e) 4/10= 8/20 , 1/4= 5/20           4/10 > 1/411/30 , 1/2 = 15/30               11/30 < 1/219/45 = 38/90 , 38/90           19/45 = 38/90