0
Yes
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Do you need to have an a like denominator to add?
Yes, you do.
What you need to add or subtract fractions?
You need a common denominator in order to add or subtract fractions.
Do you need a common denominator for all fractions before doing the order of operations?
You DO need a common denominator to add, subtract, or compare fractions. You DO NOT need a common denominator to multiply or divide fractions.
Why do you need a denominator to add fractions?
Because it tells you how much the fraction is out of.
Why do you need a common denominator when you add fractions?
Unless you are using a calculator that adds them for you, it is much harder to add fractions with uncommon denominators. Having the same denominator allows you to only have to add the numerators for your answer.
Why do fractions need to have a common denominator?
They need a common denominator when you add them. For example, if you want to add 1/2 and 1/3, you need to change the fractions to equivalents that share the same denominator, so you can combine them. 1/2 + 1/3 = 3/6 + 2/6 = 5/6
Why do you need to use common denominator?
To get the right answer when you add or subtract 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.
Why do you need a common denominator?
Common Denominator means that the denominators in two (or more) fractions are common, or the same. The common denominator is important because before you can add or subtract fractions, the fractions need to have a common denominator.Sometimes fractions have different denominators, like 2/3 and 3/4. If you want to add or subtract them, they need to have the same denominator. In order to do that, you find a common denominator which is the same thing as a common multiple, only with denominators.
When do you need a common denominator?
The denominators must be the same before you can add or subtract fractions.
When you add fractions do you add the denominator to?
No.
To add two rational expressions that have the same denominator you simply add the?
You add the numerators and put over the denominator.
