Adding and Subtracting Fractions

What is a fraction?

• A number that shows part of a whole

• A number that is always greater than 1

• A number that cannot be written with a denominator

• A number that is always less than 0

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What does the denominator in a fraction represent?

• The number of parts being counted

• The total number of equal parts in the whole

• The answer to a subtraction problem

• The largest number in the fraction

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Which of the following is an example of a pair of fractions with unlike denominators?

Tags

CCSS.4.NF.A.1

CCSS.5.NF.B.5B

Look at the two rectangles below. The first is divided into 4 equal parts with 3 shaded. The second is divided into 6 equal parts with 2 shaded. Which fractions are shown?

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

Which visual model can help you add or subtract fractions?

• Number line

• Area model (like a rectangle or circle divided into parts)

• Both A and B

• Line plot

Tags

CCSS.4.NF.B.3A

• 12

• 18

• 24

• 6

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

• About 1

Tags

CCSS.5.NF.B.5B

Which strategy can help you check your answer when adding or subtracting fractions?

• Use a visual model

• Guess the answer

• Add the denominators

• Multiply the numerators

Tags

CCSS.7.NS.A.1C

Tags

CCSS.4.NF.B.3A