Mastering Mixed Numbers: Addition and Subtraction Techniques

What must be ensured before adding or subtracting mixed numbers?

• They are both reduced to lowest terms

• They have the same whole number

• They have a common denominator

• They are both improper fractions

Tags

CCSS.7.NS.A.1C

When adding mixed numbers with common denominators, what should you do after adding the numerators?

• Change the denominator

• Add the whole numbers

• Subtract the whole numbers

• Multiply the numerators

Tags

CCSS.7.NS.A.1C

What is the first step in subtracting mixed numbers with common denominators?

• Find a common denominator

• Convert to improper fractions

• Subtract the numerators

• Subtract the whole numbers

Tags

CCSS.7.NS.A.1C

How do you handle an improper fraction when adding mixed numbers?

• Leave it as it is

• Subtract the whole numbers

• Find a common denominator

• Convert it to a mixed number

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What should you do if you cannot subtract the numerators directly in mixed numbers?

• Convert to improper fractions

• Regroup by borrowing from the whole number

• Add the whole numbers

• Find a common denominator

Tags

CCSS.7.NS.A.1C

When adding mixed numbers with unlike denominators, what is the first step?

• Convert to improper fractions

• Subtract the numerators

• Find a common denominator

• Add the whole numbers

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

In a word problem, if you need to find the width of a door given the total width of a wall and the widths of two sections, what should you do?

• Divide the total width by the widths of the two sections

• Multiply the widths of the two sections

• Subtract the total width from the widths of the two sections

• Add the widths of the two sections and subtract from the total width

Tags

CCSS.3.OA.D.8

If Tala has 7 and 1/6 yards of fabric and needs 5 and 1/3 yards, what is the first step to find out how much fabric is left?

• Convert to improper fractions

• Find a common denominator

• Subtract the two amounts directly

• Add the two amounts

Tags

CCSS.7.NS.A.1C

What is the result of subtracting 5 and 2/6 from 7 and 1/6 after regrouping?

• 1 and 4/6

• 2 and 5/6

• 2 and 1/6

• 1 and 5/6

Tags

CCSS.7.NS.A.1C

What should you do if a fraction word problem is confusing?

• Convert all fractions to improper fractions

• Multiply all fractions by the same number

• Find a common denominator first

• Ignore the fractions and solve with whole numbers

Tags

CCSS.7.NS.A.3