Adding Unlike 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 unlike fractions?

Back

Adding unlike fractions means combining fractions that have different denominators.

Front

How do you find a common denominator for 2/5 and 3/10?

Back

The least common denominator (LCD) of 2/5 and 3/10 is 10.

Front

What is the first step in adding 2/5 + 3/10?

Back

Convert 2/5 to an equivalent fraction with a denominator of 10, which is 4/10.

Front

What is the sum of 4/10 and 3/10?

Back

4/10 + 3/10 = 7/10.

Front

How do you add 3/4 and 2/3?

Back

Find the LCD, which is 12. Convert to equivalent fractions: 3/4 = 9/12 and 2/3 = 8/12. Then add: 9/12 + 8/12 = 17/12 or 1 5/12.

Front

What is the process to add 2/4 and 2/3?

Back

Find the LCD, which is 12. Convert: 2/4 = 6/12 and 2/3 = 8/12. Then add: 6/12 + 8/12 = 14/12 or 1 1/6.

Front

What is the sum of 1/3 and 5/9?

Back

Convert 1/3 to 3/9. Then add: 3/9 + 5/9 = 8/9.

Front

How do you add 2/3 and 1/6?

Back

Find the LCD, which is 6. Convert: 2/3 = 4/6 and 1/6 = 1/6. Then add: 4/6 + 1/6 = 5/6.

Front

What is the importance of finding a common denominator?

Back

Finding a common denominator allows you to add fractions accurately.