Adding Fractions with Unlike Denominators

Adding Fractions

With Unlike Denominators

Steps to adding fractions with unlike denominators

1. Identify the LCD
2. Change fractions into equivalent fractions with the LCD
3. Add the numerators
4. Leave the denominator

Multiple Choice

What is the least common denominator of 1/3 and 1/2?

• 5

• 6

• 10

Video Example

Youtube Video

Multiple Choice

2/7 +2/3 =

• 4/10

• 4/21

• 20/21

• other

Multiple Choice

5/8 + 3/10

• 8/18

• 15/40

• 37/40

• other

Poll

How confident do you feel adding fractions with unlike denominators?