Unit Rates with Fractions Flashcard

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity per one unit of another quantity.

Front

How do you calculate a unit rate with fractions?

Back

To calculate a unit rate with fractions, divide the first fraction by the second fraction. This can be done by multiplying the first fraction by the reciprocal of the second.

Front

If Lauren bikes 4/3 miles in 1/10 hour, how long does it take her to bike one mile?

Back

3/40 hours.

Front

How do you find the number of items produced per unit of time?

Back

Divide the total number of items produced by the total time taken to produce them.

Front

Kyle took 1/5 of a minute to eat 1/2 of a pie. How many pies can he eat per minute?

Back

2 and 1/2 pies per minute.

Front

What is the formula to find speed?

Back

Speed = Distance / Time.

Front

Tony walked 3 1/2 miles in 7/8 of an hour. How many miles can he walk in one hour?

Back

4 miles.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

A novelist can write 2 ¼ pages in 3/5 of an hour. What is her speed in pages per hour?

Back

15/4 pages per hour.

Front

What is the relationship between time and rate in a unit rate problem?

Back

Time is inversely proportional to the rate; as time increases, the rate decreases if the quantity remains constant.