23. Сократи дроби. А: 2/8, 8/40, 10/12, 7/28, 6/12; Б: 9/18, 2/4, 7/35, 12/16, 8/32; В: 5/30, 2/32, 8/44, 6/84, 3/45; Г: 8/12, 6/54, 2/16, 10/45, 4/24.

Сократим каждую дробь, разделив числитель и знаменатель на их общий делитель.

А: 2/8 = 1/4; 8/40 = 1/5; 10/12 = 5/6; 7/28 = 1/4; 6/12 = 1/2.

Б: 9/18 = 1/2; 2/4 = 1/2; 7/35 = 1/5; 12/16 = 3/4; 8/32 = 1/4.

В: 5/30 = 1/6; 2/32 = 1/16; 8/44 = 2/11; 6/84 = 1/14; 3/45 = 1/15.

Г: 8/12 = 2/3; 6/54 = 1/9; 2/16 = 1/8; 10/45 = 2/9; 4/24 = 1/6.