Computing Unit Rates with Simple Fractions

If a snail can move 3/10 of a meter every 1/12 hour, what is the speed of the snail, in meters per hour?

• 1/40

• 5/18

Amy jogs 1/3 of a mile in 1/15 of an hour, while John takes 1/30 of an hour to jog 1/5 of a mile.  If they continued at this rate, who would jog farther in one hour and by how much?

• Amy would jog 1 mile farther than John.

• John would jog 1 mile farther than Amy.

• Amy would jog 2 miles farther than John.

• John would jog 2 miles farther than Amy.

Kayla is pricing whole wheat flour.

• A 5-pound bag at Bargain Mart costs $6.45.

• A 2-pound bag at Food Saver costs $2.50.

• A 7-pound bag at Grocery Surplus costs $9.45.

• A 10-pound bag at Economart costs $12.89. ​

​The shop that sells flour for the lowest unit price is _____.

• Bargain Mart

• Food Saver

• Grocery Surplus

• Economart

• 1 mile per hour

• 2 miles per hour

• 3 miles per hour

• 6 miles per hour

• A

• B

• C

• D

• A

• B

• C

• D

Yesterday, Grace drove 29 1 ∕ 2 miles. She used 1 1 ∕ 4 gallons of gasoline. What is the unit rate for miles per gallons?

• 2

• 30  3/4

• All answers are correct

• 23  3 ∕ 5

Answer in the form a:b

Jeff is making a paint where he is mixing red and blue paint. The table shows the different mixtures being used. What is the unit rate for the amount of blue paint to the amount of red paint?

Mr. Adams used 2/3 lbs of nails to secure 3 & 1/3 yards of fence. How many yards of fence can Mr. Adams secure with 1 lb of nails?

• 1/5

• 2 & 2/9

• 4

• 5