Приведите к наименьшему общему знаменателю обычные дроби 3/4и1/6, 5/6и7/8, 9/10и1/4, 2/15и1/6,

1. Приведем к наименьшему общему знаменателю обычные дроби:

1. 3/4 и 1/6,

НОК (4 и 6) = 12

3/4 = (3 * 3)/(4 * 3) = 9/12

1/6 = (1 * 2)/(6 * 2) = 2/12;

2. 5/6 и 7/8,

НОК (6 и 8) = 24

5/6 = (5 * 4)/(6 * 4) = 20/24

7/8 = (7 * 3)/(8 * 3) = 21/24;

3. 9/10 и 1/4,

НОК (10 и 4) = 20

9/10 = (9 * 2)/(10 * 2) = 18/20;

1/4 = (1 * 5)/(4 * 5) = 5/20;

4. 2/15 и 1/6,

НОК (15 и 6) = 30

2/15 = (2 * 2)/(15 * 2) = 4/30

1/6 = (1 * 5)/(6 * 5) = 5/30;

5. 11/12 и 3/8,

НОК (12 и 8) = 24

11/12 = (11 * 2)/(12 * 2) = 22/24

3/8 = (3 * 3)/(8 * 3) = 9/24;

6. 1/16 и 5/12

НОК (16 и 12) = 48

1/16 = (1 * 3)/(16 * 3) = 3/48

5/12 = (5 * 4 )/(12 * 4) = 20/48;

7. 13/18 и 1/10,

НОК (18 и 10) = 90

13/18= (13 * 5)/(18 * 5) = 65/90

1/10 = (1 * 9)/(10 * 9) = 9/90;

8. 5/24 и 15/16

НОК (24 и 16) = 48

5/24 = (5 * 2)/(24 * 2) = 10/48

15/16 = (15 * 3)/(16 * 3) = 30/48;