Mastering Mixed Numbers: Addition and Subtraction Techniques

What is the first step when adding or subtracting mixed numbers?

• Convert to improper fractions

• Subtract the fractions first

• Find common denominators

• Add the whole numbers first

Tags

CCSS.7.NS.A.1C

What is the common denominator for 7 and 2?

• 7

• 14

• 2

• 21

How do you convert 15/14 to a mixed number?

• 1 and 2/14

• 2 and 1/14

• 15 and 1/14

• 1 and 1/14

What is the sum of 3 and 4/7 plus 2 and 1/2?

• 6 and 15/14

• 6 and 1/14

• 5 and 15/14

• 5 and 1/14

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the common denominator for 8 and 4?

• 16

• 12

• 8

• 4

What is the sum of 3 and 3/8 plus 5 and 1/4?

• 8 and 3/4

• 8 and 5/8

• 8 and 1/2

• 8 and 7/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the common denominator for 2 and 5?

• 15

• 10

• 2

• 5

What do you do if you cannot subtract the fractions directly?

• Add the fractions instead

• Find a new common denominator

• Borrow from the whole number

• Convert to improper fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the result of 4 and 1/2 minus 2 and 4/5?

• 1 and 3/10

• 2 and 7/10

• 2 and 3/10

• 1 and 7/10

Tags

CCSS.7.NS.A.1C

What should you do if you have any questions about the material?

• Ask the teacher

• Ignore them

• Guess the answers

• Look up the answers online

Tags

CCSS.RI. 9-10.10

CCSS.RI.6.10

CCSS.RL.7.10

CCSS.RL.8.10

CCSS.RL.9-10.10