5th grade add and subtract fractions with unlike denominator

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 have unlike denominators?

Back

Unlike denominators are denominators that are not the same in two or more fractions.

Front

How do you subtract fractions with unlike denominators?

Back

1. Find a common denominator. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Subtract the numerators and keep the common denominator.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share.

Front

Subtract 9/20 - 1/4. Write the difference in simplest form.

Back

1/5

Front

Subtract 8/9 - 1/3. Write the difference in simplest form.

Back

5/9

Front

Add 2/5 + 3/10. Write the sum in simplest form.

Back

7/10

Front

What is the sum of 1/8 and 1/3?

Back

11/24

Front

How do you add fractions with unlike denominators?

Back

1. Find a common denominator. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Add the numerators and keep the common denominator.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator may be different.