Adding & Subtracting Fractions with Unlike Denominators

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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are when the denominators of two or more fractions are different.

Tags

CCSS.4.NF.A.2

Front

How do you find the least common denominator (LCD)?

Back

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

Front

What is the first step in adding or subtracting fractions with unlike denominators?

Back

The first step is to find the least common denominator (LCD).

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the second step after finding the LCD?

Back

The second step is to convert each fraction to an equivalent fraction with the LCD.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you add fractions with the same denominator?

Back

When adding fractions with the same denominator, you add the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with the same denominator?

Back

When subtracting fractions with the same denominator, you subtract the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the process to add fractions with unlike denominators?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to subtract fractions with unlike denominators?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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 are different.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1