Section 1.4 Exercises Part B - Brigham Young University ...

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Section 1.4 Exercises Part B

Create each fraction with a denominator of 24.

1. 2 3

2.

7

12

3. 40 48

Add or Subtract. Simplify.

4.

2 5

+

2 7

=

5.

7

5 7

+

6

5 6

=

6.

2

5 8

-

9

3 5

=

Fill out the table.

Mixed

7.

-

2

5 9

8.

Improper

57 11

Find the multiplicative inverse or reciprocal of each number.

9. 3 5

Divide.

10.

3

4 9

11.

-

5 12

13.

2 7

?

5 3

=

14.

5 8

?4

1 2

=

Change into a decimal. 16. 1

9

17. 7 8

12. 7

15.

-2

3 7

?

5 7

=

18. 1 6

Change into a fraction and simplify.

Example .12

.12 =

12 (100th) =

12 100

simplify

=

3 25

19. .5 22. .52

20. .7 23. .75

21. .45 24. .6

Exercises 1.4B

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Convert the following units. Example: Flour costs $7.00 for 20 pounds. How many ounces per dollar?

Solution: 45.71 ounces per dollar

25. If a heart beats an average of 70 beats per minute, how many beats per day is that?

26. Cereal costs $4.50 for 2 pounds. How much does it cost per ounce?

27. Fishing line costs $.02 per foot. How much would 200 yards cost?

28. I was able to drive 250 miles on 15 gallons of gas. If gas costs $3.10 per gallon, how many

miles can I drive per dollar?

29. If my sprinkler sends out 5 gallons per minute, and if water costs $0.65 per 1000 gallons,

how much does watering my lawn cost per hour?

30. How many Pesos are equal to 5 Euros? (1 Mexican Peso = $0.08, 1 Euro = $1.30)

31. How many Reais (plural for Real) are equal to 7 Pounds? (1 Brazilian Real = $0.55, 1 British

Pound = $1.50)

Scripture Connections

32. Convert the fraction in Mosiah 11:3, which King Noah required of his people, to a percent

tax rate.

33. In Alma 11:5-18, the Nephite money system is given. Use verses 8-9 to find how many

senines of gold make a shum.

34.Create a visual chart for all arithmetic of decimals. Use plenty of examples.

35. Create a visual chart for all arithmetic of fractions including Unit Conversions.

Exercises 1.4B

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Answers:

1.

16 24

2.

14 24

3.

20 24

4.

24 35

5.

14

23 42

6.

-

6

39 40

7.

-

23 9

8.

5

2 11

9.

5 3

10.

9 31

11.

-

12 5

12.

1 7

13.

6 35

14.

5 36

15.

-

3

2 5

16. .1

17. .875

18. .16

19.

1 2

20.

7 10

21.

9 20

22.

13 25

23.

3 4

24.

3 5

25. 100,800

26. $0.14 per ounce

27. $12.00

28. 5.38 miles per dollar

29. $0.20 per hour

30. 81.25 Pesos

Exercises 1.4B

31. 19.09 Reals 32. 20% 33. 4 senines per shum 34. Part of Portfolio 35. Part of Portfolio

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