Question

Какой общий знаменатель у чисел 24,28,30,18

Answer 1

Общий знаменатель: 2

Answer 2

24=2*2*2*3
28=2*2*7
30=2*3*5
18=2*3*3*
НОК(21,28,30,18)=2*2*2*3*3*5*7=40*63=2520

Answer 3

Common Denominator of 24, 28, 30, 18

The common denominator of the numbers 24, 28, 30, and 18 can be found by determining the least common multiple (LCM) of these numbers.

The LCM of 24, 28, 30, and 18 is 840.

This can be calculated by finding the prime factorization of each number and then multiplying the highest power of all the factors together.

The prime factorization of each number is as follows: - 24: 2^3 * 3^1 - 28: 2^2 * 7^1 - 30: 2^1 * 3^1 * 5^1 - 18: 2^1 * 3^2

Multiplying the highest power of all the factors together gives the LCM: 2^3 * 3^2 * 5^1 * 7^1 = 8 * 9 * 5 * 7 = 840.

This means that 840 is the smallest number that is a multiple of 24, 28, 30, and 18.

Therefore, the common denominator of 24, 28, 30, and 18 is 840.