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

How much is it for 1 hotdog?

$3.00

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

100

A recipe requires 2 cups of milk for every 3 cups of flour. If you use 8 cups of milk, how many cups of flour do you need?

12

200

How much would it cost for 75 items?

$375

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

200

For every $5 Carl spends on movies, he spends $15 on video games. Last month, he spent $60 on video games. How much did he spend on movies?

$20

300

Will I earn more or less than $150 if I work 12 hours? 

Less! In 12 hours, I make $144.

300

Kyle says that 3/4 and 5/6 are equivalent because you can add 2 to the numerator and the denominator. Is he correct?

NO! Equivalent ratios are made by multiplying/dividing the numerator and denominator by the same number--NOT adding/subtracting.

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

300

Keely went for a long swim. If she swam 12 miles in 3 hours, how far would she swim in 6 hours?

24

400

What is the greatest numbers of necklaces I can make with 75 beads?

21 necklaces!


1 necklace = 3.5 beads

21*3.5 = 73.5 beads
22*3.5 = 77 beads (NOT ENOUGH)

400

Write 3 more Equivalent Ratios:

`9/13`

`18/26, 27/39, 36/52  `

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

400

The ratio of students who like apple juice to grape juice is 4:3. If 30 kids in the class like grape juice, how many kids like apple juice?  

40

500

How much would it cost for 23 items?

$115

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

500

The ratio of students with straight hair to curly hair in the 7th grade is 4:5. If there are 52 students with straight hair, how many students are their total?

117