Adding and Subtracting Fractions - 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 add fractions with unlike denominators?

Back

Adding fractions with unlike denominators requires finding a common denominator before combining the numerators.

Tags

CCSS.7.NS.A.1C

Front

How do you find the Least Common Denominator (LCD) of two fractions?

Back

The LCD is the smallest multiple that both denominators can divide into without a remainder.

Front

What is the first step in adding 1/2 and 1/4?

Back

Find the Least Common Denominator, which is 4.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Convert 1/2 to a fraction with a denominator of 4.

Back

1/2 = 2/4.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is the sum of 2/4 and 1/4?

Back

2/4 + 1/4 = 3/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with unlike denominators?

Back

First, find a common denominator, convert the fractions, then subtract the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is 5/8 - 3/12?

Back

First, find the common denominator (24), then convert: 5/8 = 15/24 and 3/12 = 6/24. So, 15/24 - 6/24 = 9/24, which simplifies to 3/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to add 5/8 and 3/12?

Back

Find the common denominator (24), convert: 5/8 = 15/24 and 3/12 = 6/24. Then add: 15/24 + 6/24 = 21/24.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If Ginger used 1/3 of her ribbon and 1/2 for the tree, how do you find the remaining ribbon?

Back

Convert to a common denominator (6): 1/3 = 2/6 and 1/2 = 3/6. Add: 2/6 + 3/6 = 5/6. Subtract from 1 (whole): 1 - 5/6 = 1/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2