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The hcf is useful in reducing fractions to their lowest terms and the lcm is useful in finding the lowest common denominator of fractions that have different denominators that need to be added or subtracted.

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10y ago
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9y ago

When adding or subtracting fractions with different denominators

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Q: How do you know whether to use common factors or multiples to solve a problem?
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Related questions

How does finding the common factors or multiples help you solve a problem?

The answer will depend on the problem!


How do you know whether to use common multiples or common multiples to solve a problem?

That seems like a fairly easy choice...


What do factors and multiples have in common?

Factors create multiples, multiples break down into factors.


Why do common multiples and common factors help solve a problem?

yes because it helps me figure out all the prime numbers!;)


Explain how you can decide if finding common multiples and common factors is helpful in solving a problem?

well i need to know this Question


What is a word problem that involves common multiples?

A word problem that involves common multiples could be, "Whatare the common multiples of 10 and 15?"


What is The common factors and multiples of 12 and 22?

Common factors: 1 and 2 Common multiples: Any multiple of 132


How are factors and multiples In common?

Factors go into numbers, numbers go into multiples.


What prime factors are common to all multiples of 10?

2 and 5 are the prime factors that are common to all multiples of 10.


What are the common multiples for 12 and 14?

1 and 2 are common factors. 84 and 168 are common multiples.


How can you decide if finding common multiples and common factors is helpful?

If finding that information assists in solving whatever problem you're working on, it's helpful.


What pair of numbers do not have any common multiples?

All numbers have common multiples.