Write the greatest common factor of numerator and denominator One third () four sixths () six twelfth () Twenty one out of 49 () six out of 48 () twenty seven out of 81 ()

One third (1) four sixths (2) six twelfth (6)
Twenty one out of 49 (7) six out of 48 (6) twenty seven out of 81 (27)

Common factor and greatest common factor
What are the prime factors of 1.24 and 36
What is the greatest common factor of 2.24 and 36?
3. Indicate which of the following groups are coprime. 3 and 5, 6 and 9, 14 and 15, 18 and 1
4. Find the greatest common factors of the following groups. 12 and 8, 13 and 7, 11 and 44, 45 and 60

The prime factors of 1.24 are 1 and 3, and the prime factors of 36 are 1 and 3
The greatest common factor of 2.24 and 36 is 12
3 and 5. 14 and 15. 18 and 1
The greatest common factor of 4.12 and 8 is 4
The greatest common factor of 13 and 7 is 1
The greatest common factor of 11 and 44 is 11
The greatest common factor of 45 and 60 is 15
24 = 2 * 2 * 2 * 3, prime factor is 2,3;
36 = 2 * 2 * 3 * 3, prime factor is 2,3;
The greatest common factor of 2.24 and 36 is 12
3 and 5, 14 and 15, 18 and 1;
The greatest common factor of 4.12 and 8 is 4
The greatest common factor of 13 and 7 is 1
The greatest common factor of 11 and 44 is 11
The greatest common factor of 45 and 60 is 15

Fifth grade math problems (common factor and common multiple) online, etc
63 and 35
13 and 91
78 and 52
12、18、24
20、80、50
9、10、12
Find their greatest common divisor and least common multiple

63 and 35: greatest common divisor 7, least common multiple 315
13 and 91: greatest common divisor 13, least common multiple 91
78 and 52: greatest common divisor 26, least common multiple 156
12. 18, 24: greatest common divisor 6, least common multiple 72
20. 80, 50: the greatest common divisor is 10, and the least common multiple is 400
9. 10, 12: greatest common divisor 1, least common multiple 360

Common multiple and common factor
There are two pieces of wood, three meters, two decimeters and four decimeters in length. Now we have to saw them into small sections of the same length. We can't cut them into small sections
What is the maximum length of each segment? How many segments have been sawn?

3M, 2DM = 32dm
4 decimeters
The greatest common factor of 32.4 is 4
32 / 4 = 8 sections
Total 8 + 1 = 9 sections

What is the method of finding the greatest common factor in mathematics of grade five volume one

(1) The greatest common factor of Coprime numbers is 1. (2) when a larger number is a multiple of a smaller number, the greatest common factor is a smaller number. (3) if there is no multiple relationship, the larger number can be reduced by 2 times and 3 times in turn. When the number is reduced to which number, the first factor to become a smaller number is their greatest common factor. For example, when 18 and 30 reduce 30 by 2 times, it is 15, 15 is not the factor of 18; reduce 30 by three times, 10 is not the factor of 18; reduce 30 by five times, 6 is the factor of 18; 6 is their greatest common factor

If the greatest common factor of natural numbers a and B is 1, then the least common multiple of a and B is ()
A. Abb. AC. BD. cannot be determined

If the greatest common factor of natural numbers a and B is 1, then the least common multiple of a and B is their product ab

Judgment question: two natural numbers have no greatest common factor, which is the least common multiple ()

Wrong
When two natural numbers have no greatest common factor, their product is the least common multiple

The greatest common factor of two different natural numbers which are not zero must be smaller than the least common multiple

The greatest common factor of two different natural numbers which are not zero must be smaller than the least common multiple
The question is right

If a = 2 (AB is a non-zero natural number), the greatest common factor of a and B is () and the least common multiple is ()

If a = 2 of B (AB is a non-zero natural number), the fraction line is equivalent to a division sign, which means that a divided by B equals 2,
In fact, for non-zero natural numbers, a is twice of B, for example: 16 and 8, 8 is the greatest common factor, 16 is the least common multiple
Reasoning to general: the greatest common factor of a and B is (b), the least common multiple is (a)

If the natural number a is a factor of the natural number B, then the greatest common factor of a and B is () and the least common multiple is (). For example ()

If natural number a is a factor of natural number B, then the greatest common factor of a and B is (a), and the least common multiple is (b). For example, if natural number 6 is a factor of natural number 12, then the greatest common factor of 6 and 12 is (6), and the least common multiple is (12)

Write the greatest common factor of numerator and denominator One third () four sixths () six twelfth () Twenty one out of 49 () six out of 48 () twenty seven out of 81 ()