zMATH 170  - Unit 4: Reciprocals and Division of Fractions

Reciprocals


1)

Find the reciprocal.


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2)

Find the reciprocal.


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3)

Find the reciprocal of 12.


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4)

Find the reciprocal.


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5)

Find the reciprocal.


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Division of Fractions


6)

For a necklace that is 18 inches long and each link is 3/4 of an inch long how many links would be in the necklace?


7)

Find the exact number of links that are in the necklace described in the previous question.


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8)

Jamie’s father is planting tomatoes in his garden.  He is planting a tomato every 1/2 yd. How many tomatoes could he plant in a garden that is 25 yards long?


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9) Find the quotient.

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10)

Find the quotient.


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11)

Find the quotient.


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12)

Find the quotient.


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13)

Find the quotient.


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14)

Find the quotient.


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15)

Find the quotient.


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Review


16)

There are approximately 24,001,816 (July 2002 est.) persons in Iraq.  About 1/5 of Iraq’s population is of the ethnic group called Kurds.  Approximately how many people in Iraq are Kurds?  State answer to nearest million.


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17)

The population of Australia is approximately 19,500,000. Approximately 195,000 are of the ethnic group called Aborigines. What fractional part of the population is Aborigines?


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18)

Use the calculator on a computer (usually found in Accessories) and determine if 7/8 is rational or irrational.


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19)

Use the calculator on a computer (usually found in Accessories) and determine if 7/9 is rational or irrational.


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20)

Solve.


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21)

Find the sum.


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22)

Ellie has a picture that measures 6 1/4 inches by 8 7/16 inches.  Her dad is making a frame for the picture and plans to make the frame 3/4 of an inch larger than the picture for both the length and the width of the picture.  What are the dimensions (length and width) for the picture frame?


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23)

Alex has a board that is 8 foot long.  He is going to cut a 5 9/16 foot board from it.  What is the length of the remaining board?


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24)

 James has $15 to spend.  He spent 2/3 of it for a video game.  How much money does he have left?


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25)

Change each of these fractions to the same denominator, and then select the answer that makes a true statement.


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