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# Why do people use least common multiple?

Updated: 8/20/2019

Wiki User

11y ago

To help with adding and subtracting fractions.

Wiki User

11y ago

Earn +20 pts
Q: Why do people use least common multiple?
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### Multiple of 30 40 and 25?

Use distribution to find the least or greater common factor

No.

Yes.

### Do you use GCF or LCM to find the least number of something?

you use the lcm (least common multiple).

### What are the common multiplies of 12 and 13?

Use one of the usual methods to get the least common multiple. To get additional multiples, multiply this least common multiple by 0, by 1, by 2, by 3, etc.

### What are the two digit common multiples of 2 8 and 10?

Use some method which you probably already learned, to find the least common multiple. All the other common multiples are multiples of this least common multiple, so you can multiply the least common multiple by 2, by 3, by 4, etc., to get additional common multiples.

### How you use the least common multiple?

When adding or subtracting unlike fractions, the LCM process is used to find the least common denominator.

420

### When you do LCD in math do you use multiples or factors?

multiples: Least Common Multiple

### What careers use the least common multiple?

When adding or subtracting fractions with different denominators their least common multiple must be found in order to carry out the given calculations.

### The two least common multiple use for the number of 105?

None. The LCM (least common multiple) is the smallest positive whole number exactly divisible by two or more whole numbers.