Rate Complex Fractions and Unit Rates

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Simplify the complex fraction.

• 18

• 1/18

• 9/72

• 1/8

A unit rate is

• a rate with the numerator of one.

• a rate with the denominator of one.

Sargento cheese slices $2.48 for 10 slices
or
Velveeta Cheese slices $3.18 for 12 slices
Find the unit price for each and choose the better deal.

• Sargento

• Velveeta

Find the unit rate from this complex fraction

_3/4_

1/2

• 3/2

• 3/8

• 1-1/2

• 5/4

Choose the correct complex fraction that represents the problem:

• 
• 
• 
• 

Brad can read 1/4 of a page from his book in 5/8 of a minute. Compute the unit rate as a complex fraction in terms of pages per minute.

• 1/2 pages per minute

• 5/32 pages per minute

• 2/5 pages per minute

• 3/4 pages per minute

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

• 1 1/2

• 3 3/5

Sasha can mow 3/8 of an acre of grass in 3/4 an hour. How many acres of grass does Sasha mow per hour?

• 2  ac./hr.

• 1/2  ac./hr.

• 9/24  ac./hr.

Joe can run 3 2/5 miles in 7/8 of an hour. What is his speed in miles per hour?

• 3  9/13 mph

• 119/40 mph

• 3  31/35 mph

• 35/136 mph