Fractions (adding, subtracting, multiplying, dividing)

What operations do you have to get a common denominator to solve? (Choose all that apply.)

• Adding

• Subtracting

• Multiplying

• Dividing

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Which fractions are equivalent to:

 $\frac{1}{2}$  

•  $\frac{1}{3}$  

•  $\frac{2}{4}$  

•  $\frac{5}{10}$  

•  $\frac{8}{4}$  

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What must you do when adding or subtracting fractions

• Keep the first number, flip the second number, and change the sign

• Add or subtract straight across

• Change mixed numbers to improper fractions

• Find a common denominator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What must you do when multiplying a proper fraction by a proper fraction?

• Find a common denominator and make equivalent fractions.

• Multiply the numerator by numerator and multiply the denominator by denominator

• Cross multiply

Tags

CCSS.5.NF.B.6

What is the sum of these fractions in lowest terms?

• 4/5
• 3/20
• 17/20
• 4/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

If you were to add

 $\frac{1}{6}+\frac{2}{3}$  
What is the least common denominator you would use to solve it?

• 3

• 6

• 9

• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

•Step 1: Make sure the bottom numbers (the denominators) are the same

•Step 2: Add the top numbers (the numerators), put that answer over the denominator

•Step 3: Simplify the fraction (if needed)

• subtracting fractions rules

• multiplying fractions rules

• adding fractions rules

• dividing fractions rules

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

• Just multiply whole number by whole number and numerator by numerator and denominator by denominator

• Find a common denominator

• Change the mixed number to an improper fraction then multiply straight across

• Keep the first number, flip the second number, and then change the symbol

Tags

CCSS.5.NF.B.6

Fill in the blank to the essential question (from adding and subtracting fractions notes):

"How can I use _______________ fractions to add and subtract fractions?"

• similar

• common

• like

• equivalent

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the difference of these fractions in lowest terms?

• 7/9
• 1/5
• 12/20
• 1/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2