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Generally speaking, if the question is about taking something away it is subtraction. If it is about a number of lots or copies or sets of something, it is multiplication.

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12y ago

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Related Questions

When or why would it be useful to know the least common multiple of a set of numbers?

When you are trying to add or subtract fractions with different denominators.


Why is finding the least common multiple important?

It will help when you are trying to add and subtract fractions.


Is it important to know how to add and subtract fractions why?

it is important to learn how to add and subtract fractions because we can use it when a time comes , when we have our own business and others .


What least common multiple can use to subtract two fractions with denomitors of 8 and 14?

It is: 56


How do you add and subtract fractions with the same denominator?

it stay the same when you subtract fractions and when you add fractions.


Why do you need a common denominator with fractions?

You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.


How do you add and subtract dissimilar fractions?

Make the fractions equivalent then subtract


How do you subtract fractions with different denominators?

By finding their lowest common denominator by means of their lowest common multiple


What is least common multiple or LCM?

The LCM is used to help you add or subtract fractions with different denominators.


What is the purpose of using lowest common multiple?

Finding the LCM helps you add and subtract fractions accurately.


Who uses the least common multiple?

Anyone who is trying to add or subtract fractions.


How do u subtract fractions?

multiply the fractions until they have common denominators and then subtract them