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Q: Do you have to have a common denominator to multiply fractions?

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When adding and subtracting unlike fractions, it is necessary to find the LCM of the denominators, called the least common denominator. Once you have found the LCD, you can convert the fractions to equivalent fractions with a common denominator and proceed with the adding and/or subtracting. Finding an LCM will have no effect on multiplying fractions.

least common denominator

The least common factor of any set of numbers is 1, so that doesn't help at all. Finding the GCF of the numerator and denominator and dividing them by it will help to simplify a fraction. Finding the least common multiple of the denominators (called the least common denominator) will help when you add and subtract fractions. None of those are needed to multiply fractions.

The least common denominator of two fractions is the least common multiple of the two denominators.

the least common denominator

Related questions

you do not do that

Just multiply the two denominators of your fractions, the answer you get is a common denominator.

You Ned to find a larger common denominator or multiply the denominators to gain a common denominator.

No.

You DO need a common denominator to add, subtract, or compare fractions. You DO NOT need a common denominator to multiply or divide 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.

one-sixth

YES.

yes. you multiply the numerator and denominator

multiply denominator by denominator and vice versa

multiply the two denominators

Yes you do.

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