Add/Subtract Fractions Unlike 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 or subtracted.

Front

Why do we need a common denominator to add or subtract fractions?

Back

A common denominator ensures that the fractions are expressed in equivalent forms, making it possible to combine their numerators.

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is the least common multiple (LCM)?

Back

The least common multiple is the smallest multiple that two or more numbers share.

Front

What is the first step in adding fractions with unlike denominators?

Back

The first step is to find a common denominator for the fractions.

Front

How do you convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factor to reach the common denominator.

Front

What is the result of 1/3 + 5/12?

Back

The result is 3/4.

Front

How do you add the fractions 3/5 and 7/10?

Back

Convert them to a common denominator, then add the numerators.

Front

What is the sum of 2/3 and 1/2?

Back

The sum is 7/6.

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms by dividing the numerator and denominator by their greatest common divisor (GCD).