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The easiest way is to simply multiply the two denominators together. For example if you have 1/2 and 1/3, the common denominator would be 6 (2X3). There may be other smaller common denominators, but unless that is what is specifically asked for then the multiplication works just fine.
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When you are multiplying fractions do you find the common denominator?
no
How do you add improper fractions if the denominator can't multiply into the other denominator?
You Ned to find a larger common denominator or multiply the denominators to gain a common denominator.
Do you have to find a common denominator to subtract fractions?
Yes.
How do you subtract fractions in simplest form?
You first need to find a common denominator, not necessarily the least common denominator. Next, you rename the fractions according to the common denominator. Only then can you subtract the fractions. After subtraction you should simplify the answer.
How to do inequality fractions?
It helps to find a common denominator and multiply both sides of the inequality by this common denominator. That way, you have an inequality without fractions.
