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 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 3/7 and 2/21?

Back

The least common multiple of 7 and 21 is 21. Convert 3/7 to 9/21 to have a common denominator.

Front

What is the first step in adding ⅘ + ½?

Back

Find a common denominator.

Front

Back

Front

Back

Front

Back

Front

What is the process of simplifying fractions?

Back

Simplifying fractions involves dividing the numerator and denominator by their greatest common factor.

Front

What does it mean to convert a fraction to an improper fraction?

Back

An improper fraction has a numerator that is greater than or equal to its denominator.