Unit rates with fractions

Answer Key - Grade 7 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.

1. 1.

   Zee walks 4/5 mile in 3/10 hour on a nature trail. What is the unit rate, in miles per hour?

   2 2/3
2. 2.

   Jun's sink fills with 5/6 gallon of water in 3/4 minute while the radio plays. What is the unit rate, in gallons per minute?

   1 1/9
3. 3.

   Bo paints 5/8 square meter of a garden fence in 2/3 hour, humming off key. What is the unit rate, in square meters per hour?

   15/16

4. Read this first

   Ratio table

   minutes	miles
   20	3/4
   60	?

   With 60 minutes in 1 hour.

5. 4.

   Kira walks 3/4 mile in 20 minutes at a steady pace. There are 60 minutes in 1 hour. How many miles per hour is that?

   2 1/4
6. 5.

   A slow circle drips 1/8 cup of water into Noah's bucket in 15 minutes. There are 60 minutes in 1 hour. How many cups of water per hour is that?

   1/2
7. 6.

   A roof drip fills a cup in Ren's shed with 1/4 cup of water in 45 minutes. There are 60 minutes in 1 hour. How many cups of water per hour is that?

   1/3
8. 7.

   Row 1 | ?, row 3/4 | ? Pia bikes 3 miles in 1/4 hour at a steady speed. At the same speed, how many miles does Pia bike in 3/4 hour?

   9
9. 8.

   Row 1 | ?, row 2 | ? Tala catches 1/3 cup of water from a drip in 3/4 hour. At the same rate, how many cups of water drip in 2 hours?

   8/9
10. 9.

    Ari times two toy robots on the kitchen floor. Robot A walks 3/4 foot in 1/3 minute. Robot B walks 2/3 foot in 1/4 minute. Which robot is faster?

    • Robot A
    • Robot B
    • They are the same
11. 10.

    Noah times two scooters. Scooter A goes 1/2 mile in 1/12 hour. Scooter B goes 3/5 mile in 1/6 hour. Which scooter is faster?

    • Scooter B
    • Scooter A
    • They are the same