Adding & Subtracting Fractions

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 it mean to add fractions?

Back

Adding fractions means combining the parts represented by the fractions. To add fractions with the same denominator, add the numerators and keep the denominator the same.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions means taking away a part from the whole represented by the fractions. To subtract fractions with the same denominator, subtract the numerators and keep the denominator the same.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert the fractions, and then add the numerators.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, like 1 1/2.

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the simplest form of a fraction?

Back

The simplest form of a fraction is when the numerator and denominator have no common factors other than 1.

Front

How do you simplify a fraction?

Back

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

Front

What is the sum of 2/7 and 4/7?

Back

The sum of 2/7 and 4/7 is 6/7.

Front

If Sara eats 3 out of 5 pieces of pizza, what fraction did she eat?

Back

Sara ate 3/5 of the pizza.