Model Ratios
Writing Equivalent Ratios
Are the ratios equivalent?
Solve Equivalent Ratios
100
Write a ratio of yellow to red circles:
3/4, 3:4, 3 to 4
100
Write 1 more Equivalent Ratio:
3:12
1:4
100
Are the Ratios Equivalent?
2/4 = 8/12
No!
100
Solve for ? to make the Ratios Equivalent:
4 : 5
? : 10
? = 8
200
Write a ratio of yellow to red circles:
5/3, 5:3, 5 to 3
200
Write 1 more Equivalent Ratio:
18:4
9:2
200
Are the Ratios Equivalent?
5/10 = 30/60
x6
Yes!
200
Solve for ? to make the Ratios Equivalent:
7 : 3
21 : ?
? = 9
300
Write a ratio of red to blue circles:
5/6, 5:6, 5 to 6
300
Write 2 more Equivalent Ratios:
10:20
1:2, 2:4
300
Are the Ratios Equivalent?
1:2 = 16:18
No!
300
Solve for ? to make the Ratios Equivalent:
? : 6
25 : 30
? = 5
400
Write a ratio of squares to diamonds:
15:20, 15:20, 15 to 20
400
Write 3 more Equivalent Ratios:
15:30
1:2, 3:6, 5:10
400
Are the Ratios Equivalent?
7/20 = 28/80
Yes!
400
Solve for ? to make the Ratios Equivalent:
45 : 90
? : 10
? = 5
500
Write a ratio of Blue Circles to all White Shapes:
4/8, 4:8, 4 to 8
500
Write 3 more Equivalent Ratios:
24:72
12:36, 8:24, 6:18, 3:9, 4:12
500
Are the Ratios Equivalent?
8 to 32 = 16 to 64
Yes!
500
Solve for ? to make the Ratios Equivalent:
56 : ?
7 : 8
? = 64