Add and Subtract Fractions with Unlike Denominators

Front

What do you need to find when adding or subtracting fractions with unlike denominators?

Back

You need to find a common denominator.

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Front

Define 'common denominator'.

Back

A common denominator is a shared multiple of the denominators of two or more fractions.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different.

Front

How do you convert fractions to have a common denominator?

Back

You can convert fractions to have a common denominator by finding the least common multiple (LCM) of the denominators and adjusting the numerators accordingly.

Front

What is the least common multiple (LCM) of 3 and 4?

Back

The LCM of 3 and 4 is 12.

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Back

The common denominator is 12.