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, which requires a common denominator.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions involves taking away the parts represented by one fraction from another, which also requires a common denominator.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

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

Back

The least common denominator (LCD) of 2 and 3 is 6. Convert 1/2 to 3/6 and 1/3 to 2/6.

Front

What is the first step in adding 3/4 and 1/6?

Back

Find a common denominator for 4 and 6, which is 12.

Front

What is the sum of 1/4 and 1/2?

Back

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

Front

What is the difference between 5/6 and 1/2?

Back

5/6 - 1/2 = 5/6 - 3/6 = 2/6 = 1/3.

Front

What is the lowest terms of 4/8?

Back

4/8 simplifies to 1/2.

Front

What must you do before adding or subtracting fractions?

Back

You must have a common denominator.