### How do you add two different denominators?

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.

### What is the common denominator of 4 and 2?

Explanation: Multiples of 2 are {2,4,6,8,10,12,14,16,} Multiples of 4 are {4,8,12,16,.) Hence common multiples are {4,8,12,16,} and Lowest Common Multiple is 4 .

### What is the common denominator of 5 and 3?

Least common multiple (LCM) of 3 and 5 is 15.

### What is the GCF of 15 and 30?

Example: What is the greatest common factor of 15 and 30? The common factors of 15 and 30 are 1, 3, 5, and 15. The greatest common factor is 15.

### What are 3 common multiples of 3 and 5?

15 and 30 are common multiples of 3 and 5. Any two numbers have an infinite amount of common multiples.

### What is the LCM of 3 and 4?

The Least Common Multiple (LCM) of some numbers is the smallest number that the numbers are factors of. Like the LCM of 3 and 4 is 12, because 12 is the smallest number that 3 and 4 are both factors for.

### What is the LCM of 3 and 7?

What is the Least Common Multiple of 3 and 7? Least common multiple (LCM) of 3 and 7 is 21.

### What is the GCF of 3 and 4?

Greatest common factor (GCF) of 3 and 4 is 1.

### What is the HCF of 12 and 16?

Thus, the HCF of 12 and 16 is ‘4’. Now that we have the HCF of ’12’ and ’16‘ as ‘4’, we can find the HCF of ‘4’ and ’28’ and it will be our required HCF.

### What is the HCF of 12?

Factors of 12 = 1, 2, 3, 4, 6 and 12. Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, common factor of 12 and 18 = 1, 2, 3 and 6. Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor].

### What is the HCF of 5 12 and 16?

Answer: HCF of 12 and 16 is 4.

### What is the HCF of 16 and 24?

Thus, the HCF of 16 and 24 is 8.

### What is the HCF of 16 and 13?

Final Step: Biggest Common Factor Number

The biggest common factor number is the GCF number. So the greatest common factor 13 and 16 is 1.

### What is the HCF of 16 and 18?

Well, The HCF (Highest Common Factor) of 16 and 18 is 2.

### What is the HCF of 15?

HCF Example

The factors of 15 are : 1, 3, 5, 15. 1 and 3 are the only common factors (numbers which are factors of both 12 and 15). Therefore, the highest common factor of 12 and 15 is 3. to see whether you are correct.

### What is the HCF of 15 & 20?

So the greatest common factor 15 and 20 is 5.

### What is the HCF of 10 15 and 30?

Answer: 5 is the HCF of of 10, 15 and 30.

### What is the HCF of 15 and 18?

What is the GCF of 15 and 18? The GCF of 15 and 18 is 3.

### What is the HCF of 18 and 24?

So the greatest common factor 18 and 24 is 6.

### What is the HCF of 15 and 35?

Factors of 35 (Thirty five) = 1, 5, 7 and 35. Therefore, common factor of 15 (Fifteen) and 35 (Thirty five) = 1 and 5. Highest common factor (H.C.F) of 15 (Fifteen) and 35 (Thirty five) = 5.