2. Сократите дроби: a) 8/12, 12/16, 12/18, 24/40, 18/27, 20/70, 8/36, 30/75 б) 2/4, 3/9, 4/16, 9/45, 11/66, 5/35

a) Сократим дроби:

• 8/12 = 2/3;
• 12/16 = 3/4;
• 12/18 = 2/3;
• 24/40 = 3/5;
• 18/27 = 2/3;
• 20/70 = 2/7;
• 8/36 = 2/9;
• 30/75 = 2/5.

б) Сократим дроби:

• 2/4 = 1/2;
• 3/9 = 1/3;
• 4/16 = 1/4;
• 9/45 = 1/5;
• 11/66 = 1/6;
• 5/35 = 1/7.

Ответ: а) 2/3, 3/4, 2/3, 3/5, 2/3, 2/7, 2/9, 2/5; б) 1/2, 1/3, 1/4, 1/5, 1/6, 1/7.