Adding and Subtracting Mixed Numbers with Unlike Denominators

What is a mixed number?

• A whole number only

• A decimal number

• A fraction with the same numerator and denominator

• A whole number and a fraction combined

Tags

CCSS.3.NF.A.3C

How many whole pizzas are there in 4 and 2/3?

• 3

• 4

• 2

• 5

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

• Find common denominators

• Convert to improper fractions

• Add the numerators

• Subtract the whole numbers

Tags

CCSS.7.NS.A.1C

What is the sum of 3/12 and 4/12?

• 1/12

• 7/12

• 3/4

• 12/12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What should you do if the numerator of the top mixed number is smaller than the bottom one?

• Convert to improper fractions

• Subtract the whole numbers first

• Find a common numerator

• Add the denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do you convert a mixed number to an improper fraction?

• Multiply the whole number by the denominator and add the numerator

• Divide the numerator by the denominator

• Add the numerator to the denominator

• Subtract the numerator from the denominator

What is 4 and 3/15 converted to an improper fraction?

• 55/15

• 63/15

• 45/15

• 60/15

What is the first step in the borrowing method for mixed numbers?

• Subtract the whole numbers

• Find a common denominator

• Add the numerators

• Take one away from the whole number

Tags

CCSS.7.NS.A.1C

In the borrowing method, what do you add to the numerator?

• 10

• The numerator

• The denominator

• The whole number

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the result of 6 and 3/12 minus 1 and 8/12 using the borrowing method?

• 5 and 5/12

• 4 and 7/12

• 5 and 7/12

• 4 and 5/12

Tags

CCSS.7.NS.A.1C