Review with Ratios of Fractions

The ratio 7: 1/6 has a unit rate of what?

Mathematical Equivalence

ON

The ratio 2/3 : 4 has a unit rate of what?

Mathematical Equivalence

OFF

The ratio 2 3/5 : 1 1/2 has a unit rate of what?

Mathematical Equivalence

ON

A unit rate is

• a rate with a numerator of one

• a rate with a denominator of one

Simplify the complex fraction

• 1/18

• 1/8

• 18

• 9/72

Simplify the complex fraction

• 5/18

• 10/36

• 40/9

• 9/40

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?

• 3 3/5 m/hr

• 1/40 m/hr

• 1 1/2 m/hr

• 5/18 m/s

Marlee is making lemonade. She uses 1/4 cup of lemon juice for every 2/3 cup of water. How many cups of lemon juice does she need if she uses 4 cups of water?

Mathematical Equivalence

ON

A water hose had filled up 1/7 of a pool after 1/10 of an hour. At this rate, how many hours would it take to fill the whole pool?

• 7 hours

• 7/10 of an hour

• 10/7 hours

• 10 hours

A pencil making machine took 1/10 of a second to make enough pencils to fill 1/2 of a box. At this rate, how long would it take the machine to fill 1 box?

• 5 seconds

• 2 seconds

• 1/5 of a second

• 1/2 of a second