Subtracting Fractions with Uncommon Denominators

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

What does the term 'denominator' mean in a fraction?

Back

The denominator is the bottom number of a fraction that indicates how many equal parts the whole is divided into.

Front

What does the term 'numerator' mean in a fraction?

Back

The numerator is the top number of a fraction that indicates how many parts of the whole are being considered.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest number that can be used as a common denominator for two or more fractions.

Front

How do you find the least common denominator for 2/9 and 5/6?

Back

The least common denominator for 2/9 and 5/6 is 18.

Front

What is the first step in subtracting fractions with different denominators?

Back

The first step is to find the least common denominator (LCD) for the fractions.

Front

How do you subtract fractions with uncommon denominators?

Back

Convert the fractions to equivalent fractions with the least common denominator, then subtract the numerators.

Front

What is 3/4 - 1/2?

Back

3/4 - 1/2 = 1/4.

Front

If a pizza is divided into 8 slices and you eat 3/4 of it, how many slices are left?

Back

If you eat 3/4 of 8 slices, you have 2 slices left.

Front

How much more flour do you need if a recipe calls for 3/4 cup but you only have 1/2 cup?

Back

You need to buy 1/4 cup more flour.