Adding & Subtracting Fractions with UNLIKE Denominators

Front

What are equivalent fractions?

Back

Fractions that represent the same value, even though they have different numerators and denominators. For example, 1/2 is equivalent to 2/4.

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

How do you add fractions with unlike denominators?

Back

First, find a common denominator, convert the fractions to equivalent fractions with that denominator, then add the numerators.

Front

How do you subtract fractions with unlike denominators?

Back

First, find a common denominator, convert the fractions to equivalent fractions with that denominator, then subtract the numerators.

Front

What is the first step in adding or subtracting fractions?

Back

Find a common denominator if the denominators are unlike.

Front

If you have 1/4 and 1/6, what is a common denominator?

Back

The common denominator is 12, as it is the least common multiple of 4 and 6.

Front

What do you do with the numerators when adding fractions?

Back

You add the numerators together.

Front

What do you do with the denominators when adding fractions?

Back

You keep the common denominator the same.

Front

What is the result of 1/3 + 1/6?

Back

The result is 1/2 after finding a common denominator of 6.

Front

What is the result of 2/5 - 1/10?

Back

The result is 3/10 after finding a common denominator of 10.