Rates and Ratios

Find the GCF of 20 and 28.

Just put the numeric answer.

Find the GCF of 25 and 50.

Just put the numeric answer.

Find the LCM of 10 and 15.

Just put the numeric answer.

Find the LCM of 3, 9, and 27.

Just put the numeric answer.

There are 10 dogs and 20 cats in a pet shelter. Write a ratio, in simplest form, representing the ratio of dogs to cats.

Answer should look like:

Number:Number

Are the following ratios equivalent?

 $\frac{3\ palm\ trees}{10\ ft^2}=\frac{15\ palm\ trees}{30\ ft^2}$  

• Yes

• No

What number can go where the '?' is to make the ratios represent an equivalent relationship?

 $\frac{10\ mi}{30\ \min}=\frac{40\ mi}{?\ \min}$  
Just put the numeric answer.

Jayleen is building a garden. She planted 12 tomato plants in 30 minutes. If she continues to work at this rate, how many tomato plants can she plant in 90 minutes?

____ tomato plants (fill in the blank)

Mr. Grim went on a trip with friends to Orlando. He drove 122 miles in 2 hours. If he continues to drive at the same rate, how many hours will it take for him to complete the trip to Orlando that is 244 miles away.

___ hours (fill in the blank)

Phillip has entered a soccer league. In the first 5 games, he managed to score 7 goals. If he continues at this rate, how many goals can he potentially make in the season of 15 games?

___ goals (fill in the blank)