Dividing Fractions by Fractions and Whole Numbers

What is the 1st step to dividing fractions?

• DIVIDE: Just divide across

• CHANGE: Change the division sign to multiplication

• KEEP: Keep the 1st fraction the same

• FLIP: Flip to the reciprocal

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7

When I am doing the 1st step (KEEP: Keep the 1st fraction the same), what do I do if there is a whole number instead of a fraction?

• Nothing

• Put whatever denominator you want

• Put a 1 on top of it

• Put a 1 in as the denominator

Tags

CCSS.5.NF.B.3

What is the 2nd step to dividing fractions?

• FLIP: Flip to the reciprocal

• CHANGE: Change the division sign to multiplication

• KEEP: Keep the sign the same

• MULTIPLY: Multiply across

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7

What is the 3rd step to dividing fractions?

• FLIP: Flip the 2nd fraction to the reciprocal

• KEEP: Keep it the same

• CHANGE: Change it to multiplication

• DIVIDE: Divide across

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7

What is an improper fraction?

• There is no such thing

• A fraction with no manners

• A fraction that needs to be simplified (The numerator is larger than the denominator)

• A big fraction

Tags

CCSS.3.NF.A.3

If I multiply across and I end up with an improper fraction, what should I do?

• Keep it like that

• Divide by 2

• Try again

• Simplify

Tags

CCSS.5.NF.B.4

CCSS.5.NF.B.6

 $3\ \div\frac{1}{2}$  

• 1/6

• 6

• 2/6

• 6/8

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7

 $4\div\frac{2}{5}$  

• 10

• 11

• 1/10

• 10/12

Tags

CCSS.5.NF.B.3

 $9\div\frac{3}{4}$  

• 1/12

• 12/15

• 12

• 2/12

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7

 $\frac{1}{3}\div\frac{2}{4}$  

• 3/6 or 1/2

• 2/4 or 1/2

• 4/6 or 2/3

• 3

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7