Adding & 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 multiple that two or more denominators share.

Front

How do you find the least common denominator for 1/2 and 1/3?

Back

The least common denominator is 6, as it is the smallest multiple of both 2 and 3.

Front

What is the process to add fractions with different denominators?

Back

1. Find the least common denominator. 2. Convert each fraction to an equivalent fraction with the LCD. 3. Add the numerators and keep the denominator.

Front

What is the process to subtract fractions with different denominators?

Back

1. Find the least common denominator. 2. Convert each fraction to an equivalent fraction with the LCD. 3. Subtract the numerators and keep the denominator.

Front

What is an example of adding fractions? 1/4 + 1/2

Back

1/4 + 1/2 = 3/4 after finding the LCD of 4.

Front

What is an example of subtracting fractions? 3/4 - 1/3

Back

3/4 - 1/3 = 5/12 after finding the LCD of 12.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.