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 it mean to add fractions?

Back

Adding fractions involves combining the parts represented by the fractions. If the denominators are the same, add the numerators. If they are different, find a common denominator first.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions involves taking one fraction away from another. If the denominators are the same, subtract the numerators. If they are different, find a common denominator first.

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 LCD of 1/3 and 1/2?

Back

The LCD of 1/3 and 1/2 is 6.

Front

What is 1/2 + 1/4?

Back

1/2 + 1/4 = 3/4.

Front

What is 3/4 + 1/4?

Back

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

Front

How do you simplify the fraction 6/8?

Back

6/8 can be simplified to 3/4 by dividing both the numerator and denominator by 2.

Front

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

Back

The first step is to find the Least Common Denominator (LCD) for the fractions.

Front

What is 1/3 - 1/6?

Back

1/3 - 1/6 = 1/6.