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Do you need a common denominator for dividing and multiplying fractions?
Wiki User
∙ 9y ago
No you do not.
Wiki User
∙ 6y ago
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Do you need a common denominator to divide fractions?
No. Dividing fractions is achieved by inverting the divisor and multiplying the resulting fractions. To multiply fractions the numerators are multiplied together to form the new numerator and the denominators are multiplied together to form the new denominator.
When multiplying fractions when they have same common denominator do you multiply the denominators?
YES.
When dividing fractions do need a common denominator?
No. Common denominators are needed for addition and subtraction, not multiplication or division.
How do you put different fractions in increasing order?
Option 1: Find a common denominator for the two fractions. It need not be the least common denominator; for example, for two fractions, if you just multiply the two denominators, you get a common denominator. Convert all the fractions to the common denominator. Then you can compare. Option 2: Convert each fraction to decimal, by dividing the numerator by the denominator. Then you can compare the decimals.
Adding and subtracting unlike denominators?
Fractions can only be added or subtracted if the denominators are the same. If the denominators are different, then the fractions need to be made into equivalent fractions with the same denominator. The new denominator can be found simply by multiplying the denominators together, but this can lead to some large fractions with which to work. A better new denominator is the lowest common multiple of (all the) denominators. (Once the new denominator is found, the fractions' new numerators are found by multiplying their current numerator by the new denominator divided by their current denominator to make their equivalent fractions with the new denominator.) Once all the fractions are converted into equivalent fractions with the new denominator then the fractions can be added or subtracted, with the result being simplified (if possible).
How do you find common denominators with dividing fractions?
When you're dividing fractions ... or multiplying thrm ... they don't need to have the same denominator.
Why is there no common denominator when multiplying or dividing fractions?
Because it is not how multiplication or division are defined.
How do you get the common denominator for dividing fractions?
You don't need a common denominator to divide fractions.
How do you solve all fractions problems?
You basically have to learn separately how to do different things with fractions, including finding a common denominator; converting fractions to a different denominator; simplifying fractions; adding and subtracting fractions; multiplying fractions; dividing fractions.
When you are multiplying fractions do you find the common denominator?
no
Do you need a common denominator multiplying fractions?
No.
Do you need a common denominator for dividing fractions?
No only when adding or subtracting fractions a common denominator is needed
Do you need a common denominator to divide fractions?
No. Dividing fractions is achieved by inverting the divisor and multiplying the resulting fractions. To multiply fractions the numerators are multiplied together to form the new numerator and the denominators are multiplied together to form the new denominator.
How do you get the common denominator in dividing fraction?
You don't need a common denominator to divide fractions.
When multiplying fractions when they have same common denominator do you multiply the denominators?
YES.
Why don't you have to find a common denominator when multiplying fractions?
Multiplying fractions is quite different from adding them. You just multiply the numberators and the denominators separately. You can find the common denominator if you like, but in the end (after simplifying), you'll get the same result, and the additional work of finding the common denominator and converting the fractions turns out to be unnecessary. Try it out for some fractions!
Do you find a common denominator for dividing fractions?
yes alot of times you do
