Question

Помогите пожалуйста сделать:приведи к наименьшему общему знаменателю дроби:а)5/16 и 3/4б)2/3 и 7/18в)11/12 и 23/60г)4/5 и 1/6д)8/9 и 2/7е)7/8 и 6/11зарание спасибки))

Answer 1

А) 5/16 12/12
b 12/18 7/18
B 55/60 23/6-
g 24/30 5/30
d  56/63 18/63
e 77/88 48/88

Answer 2

Finding the Least Common Denominator for Fractions

To find the least common denominator (LCD) for fractions, we need to determine the smallest multiple that both denominators share. Then, we can use this common multiple as the new denominator for each fraction.

Calculating the Least Common Denominator for Each Pair of Fractions

a) 5/16 and 3/4: To find the least common denominator for 5/16 and 3/4, we can start by finding the multiples of 16 and 4: - Multiples of 16: 16, 32, 48, 64, 80, 96, ... - Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, ...

The least common multiple (LCM) of 16 and 4 is 16. Therefore, the least common denominator for 5/16 and 3/4 is 16.

b) 2/3 and 7/18: To find the least common denominator for 2/3 and 7/18, we can start by finding the multiples of 3 and 18: - Multiples of 3: 3, 6, 9, 12, 15, 18, 21, ... - Multiples of 18: 18, 36, 54, 72, ...

The least common multiple (LCM) of 3 and 18 is 18. Therefore, the least common denominator for 2/3 and 7/18 is 18.

c) 11/12 and 23/60: To find the least common denominator for 11/12 and 23/60, we can start by finding the multiples of 12 and 60: - Multiples of 12: 12, 24, 36, 48, 60, ... - Multiples of 60: 60, 120, 180, ...

The least common multiple (LCM) of 12 and 60 is 60. Therefore, the least common denominator for 11/12 and 23/60 is 60.

d) 4/5 and 1/6: To find the least common denominator for 4/5 and 1/6, we can start by finding the multiples of 5 and 6: - Multiples of 5: 5, 10, 15, 20, 25, 30, ... - Multiples of 6: 6, 12, 18, 24, 30, ...

The least common multiple (LCM) of 5 and 6 is 30. Therefore, the least common denominator for 4/5 and 1/6 is 30.

e) 8/9 and 2/7: To find the least common denominator for 8/9 and 2/7, we can start by finding the multiples of 9 and 7: - Multiples of 9: 9, 18, 27, 36, 45, 54, 63, ... - Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, ...

The least common multiple (LCM) of 9 and 7 is 63. Therefore, the least common denominator for 8/9 and 2/7 is 63.

f) 7/8 and 6/11: To find the least common denominator for 7/8 and 6/11, we can start by finding the multiples of 8 and 11: - Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, ... - Multiples of 11: 11, 22, 33, 44, 55, 66, ...

The least common multiple (LCM) of 8 and 11 is 88. Therefore, the least common denominator for 7/8 and 6/11 is 88.

I hope this helps! If you have any other questions or need further assistance, feel free to ask.