Зведи до найменьшого спільного знаменника дроби чотири дев,ятих і одна шоста, 1/6 і 2/15, 5/12 і 7/16, 3/4 і 5/18 , 3/10 і 7/15, 5/18 і 7/24, 11/30 і 7/24, 9/34 і 8/51

4/9 и 1/6      4/9 = 8/18 и 1/6 = 3/18  

9 = 3 * 3      6 = 2 * 3      НОК (9 и 6) = 9 * 2 = 18

1/6 и 2/15     1/6 = 5/30 и 2/15 = 4/30

6 = 2 * 3     15 = 3 * 5   НОК (6 и 15) = 2 * 3 * 5 = 30

5/12 и 7/16    5/12 = 20/48 и 7/16 = 21/48

12 = 2 * 2 * 3       16 = 2 * 2 * 2 * 2      НОК (12 и 16) = 16 * 3 = 48

3/4 и 5/18     3/4 = 27/36 и 5/18 = 10/36

4 = 2 * 2      18 = 2 * 3 * 3      НОК (4 и 18) = 4 * 9 = 36

3/10 и 7/15      3/10 = 9/30 и 7/15 = 14/15

10 = 2 * 5      15 = 3 * 5     НОК (10 и 15) = 2 * 3 * 5 = 30

5/18 и 7/24     5/18 = 20/72 и 7/24 = 21/72

18 = 2 * 3 * 3        24 = 2 * 2 * 2 * 3     НОК (18 и 24) = 8 * 9 = 72

11/30 и 7/24       44/120 и 35/120

30 = 2 * 3 * 5      24 = 2 * 2 * 2 * 3    НОК (30 и 24) = 8 * 3 * 5 = 120

9/34 и 8/51      9/34 = 27/102 и 8/51 = 16/102

34 = 2 * 17     51 = 3 * 17     НОК (34 и 51) = 2 * 3 * 17 = 102