Adding and Subtracting Fractions and Mixed Numbers

What must you do at the end of every problem you solve involving fractions, unless directions tell you otherwise?

• Simplify the fraction
• Ignore the fraction
• Add the fraction
• Multiply the fraction

What is the meaning of 'denominator' in a fraction?

• The result of adding two fractions together

• The number above the fraction line

• The total number of unequal parts in the whole

• The total number of equal parts into which the whole is divided

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What does the term 'numerator' in a fraction represent?

• Number of smaller numbers

• Number of larger numbers

• Number of equal parts in the whole

• Number of equal parts being considered

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the number on top of the fraction called?

• denominator
• addend
• exponent
• numerator

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the number on the bottom of the fraction called?

• denominator
• quotient
• divisor
• numerator

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the first step when adding or subtracting fractions with unlike denominators?

• Find the greatest common factor of the denominators.

• Add or subtract the numberators

• Find the lowest common denominator (by finding the LCM of the denominators)

• Add or Subtract the denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When do you add or subtract the numerators?

• After you rename the fractions using the common denominator and equivalent fractions.

• Right after you find the lowest common denominator.

• As soon as you begin the problem.

• Before find the lowest common denominator.

Tags

CCSS.7.NS.A.1C

When do you add or subtract the denominators?

• At the end of the problem.

• Once you have renamed the fractions.

• Before finding the common denominator.

• NEVER: Are you kidding me? That is a major NO NO!

Tags

CCSS.7.NS.A.1C

Convert the fraction 2/7 to an equivalent fraction with a denominator of 21.

• 5/21

• 6/21

• 8/21

• 3/21

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the result of subtracting 5/6 from 1?

• 3/4

• 5/6

• 1/6

• 2/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2