Ratios, Units, and Proportions

Writing Ratios

100

Write the ratio as a fraction in simplest form.

12:32

3/8

200

Write the ratio as a fraction in simplest form. 

42:30

7/5

300

Write the ratio as a fraction in simplest form.

50:35

10/7

400

Write the ratio as a fraction in simplest form. 

42:12

7/2

500

Write the ratio as a fraction in simplest form. 

5:50

1/10

Unit Rate

100

Find the unit rate.

2:30, 3:45, 4:60

Unit rate 15/1

200

3:36, 4:48, 5:60

Unit rate 12/1

300

2/$11.50, 3/$17.25, 4/$23  

Unit rate $5.75/1

400

At the produce store you can buy 4 bags of bananas for $22.52. How much would it cost if you were to buy 2 bags?

$11.26

Unit rate = $5.63/1

500

At a comic book convention vendor 1 was selling a set of 5 comics for $53.10. Vendor 2 was selling a set of 3 comics for $31.71. Which vendor has the higher unit price?

DOUBLE POINTS

vendor 1 = $10.62/1  

vendor 2 = $10.57/1

Proportions

100

Tell whether the ratios are proportional.

3 to 5 , 21 to 35

Yes

200

28 to 7 , 56 to 16

No

300

Tell whether the ratios are proportional.

6 to 5 , 18 to 13

No

400

Tell whether the ratios are proportional.

160 to 80 , 48 to 24

Yes

500

360 to 90 , 120 to 32

No 

Creating Equivalent Ratios

100

72 : 64 = 9 : __

8

200

32 : __ = 12 : 24

64

300

__ : 5 = 18 : 30

3

400

6 : __ = 54 : 27

3

500

12 : 15 = __ : 45

36

Solve the Proportion

100

t/5 = 60/20

15

200

10/t = 5/16

32

300

7/8 = p/64

56

400

9/t = 15/30

18

500

t/144 = 9/108

12