Reciprocals of Fractions

Reciprocals of Fractions

Poll

How are you feeling today?

• Great!

• Excited for the end of the quarter!

• 4 days til Friday!

• Ready to slay the day!

• Looking forward to the end of the school day

Poll

Riddle:

There are 5 birds sitting on a window sill. 3 of the birds decide to fly away. How many birds are remaining on the window sill?

• 1

• 2

• 3

• 4

• 5

Agenda

• Review Quiz from Friday

• Introduction of new topic and notes

• Practice

• Homework

Review of Quiz Questions

(Taken Friday)

Multiple Choice

Change to an improper fraction

• 5/3

• 2/3

• 3/2

• 4/3

Multiple Choice

Change to a mixed fraction

• 1 5/7

• 2 1/5

• 1 2/5

• 5 1/7

Multiple Choice

If possible, simplify the following fraction. $\frac{15}{20}$  

•  $\frac{1}{2}$  

•  $\frac{3}{4}$  

•  $\frac{4}{5}$  

• This fraction is already in simplest form.

Multiple Choice

If possible, simplify the following fraction  $\frac{7}{21}$  

•  $\frac{4}{8}$  

•  $\frac{1}{3}$  

•  $\frac{1}{2}$  

• This fraction is already in simpliest form.

Multiple Choice

What fraction of the rectangle is NOT shaded?

• ¹/₈

• ⁷/₈

• ¹/₈

Multiple Choice

What fraction is NOT shaded?

• 3 fourths

• 4 fourths

• 1 whole

• 1 fourth

Multiple Choice

What fraction of the shapes are quadrilaterals (have 4 sides)

• 5/5

• 5/10

• 4/10

• 2/10

Multiple Choice

What fraction of the shapes are rectangles?

• 3/9

• 3/10

• 3/6

• 6/10

Multiple Choice

The number on the bottom of a fraction is called what?

• numerator
• denominator

Multiple Choice

If the numerator is greater than the denominator then this type of fraction is called...

• improper fraction

• proper fraction

• mixed number

Multiple Choice

Classify each fraction as proper, improper or mixed numeral:  $\ \frac{19}{5}$  

• proper fraction

• improper fraction

• mixed numeral

Multiple Choice

Classify each fraction as proper, improper or mixed numeral:  $2\ \frac{3}{8}$  

• proper fraction

• improper fraction

• mixed numeral

Multiple Choice

Classify each fraction as proper, improper or mixed numeral:  $\frac{11}{14}$  

• proper fraction

• improper fraction

• mixed numeral

Multiple Choice

If the denominator is greater than numerator then this type of fraction is called

• improper fraction

• proper fraction

• mixed number

Multiple Choice

A fraction with whole number is known as

• improper fraction

• mixed number

• proper fraction

Multiple Choice

The number on the top of a fraction is called what?

• numerator

• denominator

Reciprocal Notes

• Reciprocal is what you multiply by to get a value of 1

• Reciprocal can also be called a multiplicative inverse

• Reciprocals are important when dividing fractions, solving equations, and using proportions.

• Every number has a reciprocal except 0 because you can’t divide a number by zero

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Find the reciprocal of 18/96

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Find the reciprocal of 12/63

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Find the reciprocal of 16/85

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Find the reciprocal of 9/25

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Find the reciprocal of 11/121

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Find the reciprocal of 16/9

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Find the reciprocal of 45/3

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Find the reciprocal of 12/6

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Find the reciprocal of 96/48

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Find the reciprocal of 11/2

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Find the reciprocal of  $5\ \frac{1}{3}$   

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Find the reciprocal of  $2\ \frac{5}{6}$   

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Find the reciprocal of  $4\ \frac{1}{10}$   

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Find the reciprocal of  $1\ \frac{2}{3}$   

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Find the reciprocal of  $9\ \frac{2}{4}$