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Do you need a common denominator when subtracting fractions?
yes you should use a common denominator when subtracting with fractions, it makes it much easier.
Do you need a common denominator in subtracting fractions?
Yes.
How is subtracting fractions like adding fractions?
You need a common denominator for both.
Do you need a common denominator for dividing fractions?
No only when adding or subtracting fractions a common denominator is needed
When adding or subtracting fractions you need to?
Find a common denamonator.
Does division need a common denominator?
No, You only need a common denominator when adding or subtracting fractions.
Do you need common denominators when subtracting fractions?
Yes. You need common denominators if you want to:Add fractionsSubtract fractionsCompare fractions ("which is larger?")You do not need common denominators to multiply or divide fractions. Thus, in the case of fractions, multiplication and division is actually easier than addition and subtraction.
When do you need to find the least common multiple for two or more numbers?
When you are adding or subtracting unlike fractions.
Why do fractions need a common denominator before you add or subtract?
Because the answers will be wrong when adding or subtracting them if they don't have a common denominator.
How is finding the LCM revelant when adding and subtracting fractions?
To add and subtract fractions, you need common denominators. To find the common denominator, find the LCM of the denominators you wish to add or subtract.
When adding or subtracting two fractions with denominators that are not equal what is the first step you take?
The first step to take is find the lowest common denominator of the fractions which can be done by finding the lowest common multiple of the numbers.
Why do fractions need to have a common denominator before subtracting or adding?
Because if there's no common denominator it'll be hard to simplify. And will cause you to get a headache.
