## The unit rate is a special type of ratio in which the two separate measurements are compared and expressed as a quantity of one. A "ratio" is any comparison of two numerical measurements. Each measurement is called a "term.". A "rate" is a ratio in which the two terms are measured in different units.

• 200 sausages were eaten by 50 people. The unit rate is 4 sausages per person. • They need 5 m of thread to make 2 cm of cloth. The unit rate is 2.5 m per cm. • The car can go 1000 km on 50 liters of fuel. The unit rate is 20 km per liter. • There are 100 students and 4 teachers. The unit rate is 25 students per teacher. Definition Of Unit Rate. Unit Rate is the ratio of two measurements in which the second term is 1. More About Unit of Measurement. The two measurements involved for which ratio are taken in unit rate is always different. Example of Unit Rate. If Nancy earns $180 in 20 hours, then unit rate of her earning is given as 180/20 =$9 per hour. When the denominator of a rate is 1, we call the rate a unit rate. We usually use the key word “per” or the division symbol ( /) to indicate a unit rate. For example: If a student earns $7.65 per hour, it is the same as$7.65 per hour or $7.65/hour. This means$7.65 for every hour of work. Unit rates can also be used to solve problems. This Lesson (Rate, unit rate and unit prices) was created by by PrateekJain(0) : View Source, Show About PrateekJain: A rate is a form of ratio in which the two terms are in different units. For example price of wheat is $2 for 3 Kgs, then the rate would be$2 for 3 Kgs and the unit of rate would be $/Kg. Find Unit Rates. In the last example, we calculated that Bob was driving at a rate of $\frac{\text{175 miles}}{\text{3 hours}}$. This tells us that every three hours, Bob will travel $175$ miles. This is correct, but not very useful. We usually want the rate to reflect the number of miles in one hour. What is a ratio? (EMGV) It is important in which order you state the ratio. A ratio of Unit rates. For example, if we want a rate for R20 for 2 kg of flour, we write:. Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use "We paid$75 for 15 hamburgers, which is a rate of \$5 per hamburger.