Adding Fractions with Unlike Denominators

Front

What must you have to add and subtract fractions?

Back

Common denominators

Front

What is a numerator?

Back

Top number in a fraction

Front

What is a denominator?

Back

Bottom number in a fraction

Front

How do you find a common denominator for 1/4 and 1/6?

Back

The least common multiple (LCM) of 4 and 6 is 12.

Front

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

Back

Find a common denominator.

Front

If you have 1/3 and 1/5, what is the common denominator?

Back

The common denominator is 15.

Front

How do you convert 1/3 to have a denominator of 15?

Back

Multiply both the numerator and denominator by 5 to get 5/15.

Front

How do you convert 1/5 to have a denominator of 15?

Back

Multiply both the numerator and denominator by 3 to get 3/15.

Front

What is the sum of 5/15 and 3/15?

Back

The sum is 8/15.

Front

What is the process of adding fractions with unlike denominators?

Back

Convert to common denominators, then add the numerators.