Model Ratios
Writing Equivalent Ratios
Are the ratios equivalent?
Solve Equivalent Ratios
100

Write a of yellow to red circles:


3/4, 3:4, 3 to 4

100

Write 3 more Equivalent Ratios:

1/4


2/8, 3/12, 4/16

100

Are the Ratios Equivalent?  

Show Evidence and write Yes or No.

2/4 = 3/5

10 = 12

No!

100

Solve for x to make the Ratios Equivalent:

x/5 = 8/10

x = 4

200

Write a ratio of yellow to red circles:


5/3, 5:3, 5 to 3

200

Write 3 more Equivalent Ratios:

2/9

4/18, 6/27, 8/36

200

Are the Ratios Equivalent?  

Show Evidence and write Yes or No.

5/10 = 3/6

30 = 30

Yes!

200

Solve for x to make the Ratios Equivalent:

3/9 = 9/x

x = 27

300

Write a ratio of red to blue circles:


5/6, 5:6, 5 to 6

300

Write 3 more Equivalent Ratios:

9/13

18/26, 27/39, 36/52  

300

Are the Ratios Equivalent?  

Show Evidence and write Yes or No.

8/10 = 16/18

144 = 160 

No!

300

Solve for x to make the Ratios Equivalent:

7/14 = x/42

x = 21

400

Write a ratio of squares to diamonds:


15:20, 15:20, 15 to 20

400

Write 3 more Equivalent Ratios:

12/16

24/32, 36/48, 48/64

400

Are the Ratios Equivalent?  

Show Evidence and write Yes or No.

13/14 = 39/42


546 = 546

Yes!

400

Solve for x to make the Ratios Equivalent:

2/16 = x/80

x = 10

500

Write a ratio of Blue Circles to all White Shapes:


4/8, 4:8,  4 to 8

500

Write 3 more Equivalent Ratios:

24/36

12/18, 6/9, 2/3, 8/12, 4/6, 

500

Are the Ratios Equivalent?  

Show Evidence and write Yes or No.

8/32 = 56/224

1792 = 1792

Yes!

500

Solve for x to make the Ratios Equivalent:

18/x = 54/90

x = 30

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