Adding and Subtracting Fractions

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 numerator in a fraction represent?

Back

The numerator indicates how many parts of the whole are being considered.

Front

What does the denominator in a fraction represent?

Back

The denominator shows the total number of equal parts the whole is divided into.

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 of 1/5 and 2/10?

Back

The LCD of 1/5 and 2/10 is 10.

Front

What is the process to add fractions with different denominators?

Back

Find the LCD, convert the fractions to equivalent fractions with the LCD, then add the numerators.

Front

What is the process to subtract fractions with different denominators?

Back

Find the LCD, convert the fractions to equivalent fractions with the LCD, then subtract the numerators.

Front

What is 3/4 + 1/4?

Back

3/4 + 1/4 = 4/4 or 1.

Front

What is 15/16 - 12/16?

Back

15/16 - 12/16 = 3/16.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common factor.