Making Common Denominators

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added, subtracted, or compared.

Front

How do you find the least common denominator (LCD)?

Back

To find the LCD, list the multiples of each denominator and identify the smallest multiple that is common to all.

Front

What is the process to convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factor to make the denominators equal to the LCD.

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Back

Front

Back

The least common denominator is 18.

Front

Back

Front

Back

The least common denominator is 18.

Front

Back

Front

What is the formula for multiplying fractions?

Back

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and denominator by their greatest common factor (GCF).