Adding and Subtracting Fractions 4th grade

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number).

Front

What does the numerator in a fraction represent?

Back

The numerator represents the number of parts we have.

Front

What does the denominator in a fraction represent?

Back

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

Front

How do you add fractions with the same denominator?

Back

Add the numerators together and keep the denominator the same.

Front

How do you subtract fractions with the same denominator?

Back

Subtract the numerators and keep the denominator the same.

Front

What do you need to do before adding or subtracting fractions with different denominators?

Back

You need to find a common denominator.

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of the fractions you are adding or subtracting.

Front

If you have 1/4 and 1/4, what is the sum?

Back

1/4 + 1/4 = 2/4, which simplifies to 1/2.

Front

If you have 3/5 and 1/5, what is the sum?

Back

3/5 + 1/5 = 4/5.

Front

If you have 3/4 and you eat 1/4, how much is left?

Back

3/4 - 1/4 = 2/4, which simplifies to 1/2.