Adding/Subtracting Fractions with Unlike 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 it mean for fractions to have unlike denominators?

Back

Fractions have unlike denominators when the bottom numbers (denominators) are different, making it necessary to find a common denominator to add or subtract them.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator may be different.

Front

How do you find the Least Common Denominator (LCD) of two fractions?

Back

To find the LCD, list the multiples of each denominator and find the smallest multiple that both denominators share.

Front

What is the LCD of 1/4 and 1/6?

Back

The LCD of 1/4 and 1/6 is 12.

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find the LCD, convert each fraction to an equivalent fraction with the LCD, and then add the numerators.

Front

How do you subtract fractions with unlike denominators?

Back

To subtract fractions with unlike denominators, find the LCD, convert each fraction to an equivalent fraction with the LCD, and then subtract the numerators.

Front

What is the first step in adding or subtracting fractions?

Back

The first step is to find a common denominator (Least Common Denominator) for the fractions.

Front

What is the simplified form of 6/18?

Back

The simplified form of 6/18 is 1/3.

Front

If Ms. Howe bought 9/12 pounds of apples and 2/4 pounds of strawberries, how do you find the difference in weight?

Back

Convert both fractions to have the same denominator, then subtract the weight of strawberries from the weight of apples.