1. We will write ratios as fractions in simplest form
Lesson Page Ratios
A Ratio i sa comparison of two quantities by division
We will write ratios as fractions
in simplest form
We will simplify ratios involving
measurements

2. Copy 2 cups = 1 pint 16 ounces = 1 pound 4 cups = 1 quart
You may use this on test
2 cups = 1 pint
4 cups = 1 quart
2 pints = 1 quart
4 quarts = 1 gallon
16 ounces = 1 pound
12 inches = 1 foot
36 inches = 1 yard
3 feet = 1 yard

3. When converting measurement for a ratio use the following:
pints to cups
quarts to pints
quarts to cups
gallon to quart
pound to ounces
feet to inches
yard to feet
yard to inches
You may use this on test

4. Many ways to write ratios
Algebra
Numbers
Always Reduce

5. If playing basketball
12 baskets in 18 attempts
12: to 18 12 18

6. 10 of every 30 Americans own a cell phone
15 out of every 100 students like Physical Education

7. 90 to 4

8. When writing a ratio involving measurements, both
quantities should have the same unit of measurement

9. convert ounces to pounds Write as fraction Reduce
Example
Express 8 ounces to 3 pounds
pounds to ounces
convert ounces to pounds
Write as fraction
Reduce
Remember Hint ounces = 1 pound

10. convert ounces to pounds Write as fraction Reduce
Example
Express 8 ounces to 3 pounds
pounds to ounces
convert ounces to pounds
Write as fraction
Reduce
Remember Hint ounces = 1 pound

11. (convert pints to quarts)
3 pints to four quarts
(convert pints to quarts)
convert quarts to pints
Remember Hint pints = 1 quart

12. (convert pints to quarts)
3 pints to four quarts
(convert pints to quarts)
convert quarts to pints
Remember Hint pints = 1 quart

13. Page 268
Problems write as fractions and reduce
6 - 9 and are measurements (changes)
22 and 23 are word problems

14. Pages 268 - 269 5. 15 out of 24 Problems 1- 25 10. 9 out of 15
Selected on next 3 slides
1. 12:16
out of 60
3. 36:84
to 25

15. Pages 268 - 269 5. 15 out of 24 Problems 1- 25 10. 9 out of 15
Selected on next 3 slides
1. 12:16
out of 60
3. 36:84
to 25

16. pints to 4 quarts
8. 9 inches to 1 yard
9. 6 gallons to 3 quarts

17. pints to 4 quarts
8. 9 inches to 1 yard
9. 6 gallons to 3 quarts

18. yards to 10 feet
ounces to 2 pounds
quarts to 4 gallons
feet to 14 inches

19. yards to 10 feet
ounces to 2 pounds
quarts to 4 gallons
feet to 14 inches

20. yards to 10 feet
ounces to 2 pounds
quarts to 4 gallons
feet to 14 inches

21. yards to 10 feet
ounces to 2 pounds
quarts to 4 gallons
feet to 14 inches

24. Page 272 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal
400 miles on 14 gallons
How much is 1 box ?
How many miles does your car
(truck) get per gallon of gas?

25. Page 272 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal
400 miles on 14 gallons
How much is 1 box ?
How many miles does your car
(truck) get per gallon of gas?

26. Page 272 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal
400 miles on 14 gallons
How much is 1 box ?
How many miles does your car
(truck) get per gallon of gas?

27. Usually when dealing with money you will put
the amount first

28. Lets do a few 1B. 100 meters in 14 seconds Page 272
1A. $18.50 for 5 pounds

29. Page 273
Online music store sells 15 songs for $12.00.
iTunes sells 10 songs for $9.00.
What is the best deal?

30. Page 273
Online music store sells 15 songs for $12.00.
iTunes sells 10 songs for $9.00.
What is the best deal?

32. Page 273
Online music store sells 15 songs for $12.00.
iTunes sells 10 songs for $9.00.
What is the best deal?

33. A store sells two different kinds of head phones.
Package of 8 sets for $ and
package of 12 sets for $ What is the
cheapest package?

34. A store sells two different kinds of head phones.
Package of 8 sets for $ and
package of 12 sets for $ What is the
cheapest package?

35. A store sells two different kinds of head phones.
Package of 8 sets for $ and
package of 12 sets for $ What is the
cheapest package?

36. Assignment
Page 274
Problems
Bonus #20

37. Page 274
$24 per day
miles per gallon
points per game
4. $3.25 per pound
gallons per minute
feet per second

38. Page 274
7. Peanuts Which brand is the best buy?
Explain your reasoning
Barrel 10 oz. for $3.39
Mr. Nut 14 oz for $4.54
Chip's 18 oz for $6.26

39. Page 274
7. Peanuts Which brand is the best buy?
Explain your reasoning
Barrel 10 oz. for $3.39
Mr. Nut 14 oz for $4.54
Chip's 18 oz for $6.26
.34 cents per oz
.32 cents per oz
.35 cents per oz

40. miles
Drove 170 in 2.5 hours
how many miles in 4 hours?

41. 9. 26
12. $7.49
13. $77
15. $6.50

42. 20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies
I need 4 1/2 dozen cookies
How much sugar do I need?

43. 20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies
I need 4 1/2 dozen cookies
How much sugar do I need?
First find amount of sugar for 1 dozen
3/4 divided by 2

44. 20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies
I need 4 1/2 dozen cookies
How much sugar do I need?
First find amount of sugar for 1 dozen
3/4 divided by 2
= 3/8
3/8 x 9/2 =
multiply 3/8 times /2

45. 20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies
I need 4 1/2 dozen cookies
How much sugar do I need?
First find amount of sugar for 1 dozen
3/4 divided by 2
= 3/8
3/8 x 9/2 =
multiply 3/8 times /2
27/16 = 1 11/16

46. Example 3 Page 273
A typical dolphin will take about 34
breaths in 4 hours. How many breaths will
a dolphin take in 7 hours?

47. Example 3 Page 273
A typical dolphin will take about 34
breaths in 4 hours. How many breaths will
a dolphin take in 7 hours?

48. Example 3 Page 273
A typical dolphin will take about 34
breaths in 4 hours. How many breaths will
a dolphin take in 7 hours?

49. Page 273 Guided Practice 3. Classwork
A bakery can make 195 doughnuts in 3 hours. At
this rate, how many doughnuts can the bakery
make in 8 hours?

50. Questions for Example 3?
Assignment Page 274
Problems