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

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 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

What is the first step in adding 3/5 and 3/10?

Back

The first step is to find a common denominator, which in this case is 10.

Front

What is the sum of 3/5 and 3/10?

Back

The sum is 9/10.

Front

How do you subtract mixed numbers?

Back

To subtract mixed numbers, convert them to improper fractions, subtract, and then convert back to a mixed number if necessary.

Front

What is the result of 8 2/4 - 3 1/3?

Back

The result is 5 1/6.

Front

How do you convert 1/3 to a fraction with a denominator of 9?

Back

Multiply both the numerator and denominator by 3 to get 3/9.

Front

What is the sum of 1/3 and 1/9?

Back

The sum is 4/9.

Front

How do you add 7/10 and 2/5?

Back

Convert 2/5 to 4/10, then add: 7/10 + 4/10 = 11/10 or 1 1/10.