Understanding Ratios and Rates and GCF/LCM

Find the GCF:

24, 60

Tags

CCSS.6.NS.B.4

Find the LCM:

6, 15

Tags

CCSS.6.NS.B.4

Mark goes to the gym every 3 days, while his sister Riley goes to the gym every 5 days. If they both went to the gym today, how many days will it take for them both to be at the gym on the same day again?

• 15 days

• 5 days

• 3 days

• 1 day

Answer explanation

Mark goes to the gym every 3 days and Riley every 5 days. To find when they will both be at the gym again, calculate the least common multiple (LCM) of 3 and 5, which is 15 days.

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A recipe requires 3 cups of flour for every 2 cups of sugar. What is the ratio of flour to sugar?

• 2:3

• 3:2

• 1:2

• 2:1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A bag contains 5 green marbles and 10 yellow marbles. What is the ratio of green marbles to total marbles? SELECT ALL THAT APPLY! (Hint: you may need to simplify!)

• 1:2

• 1:3

• 5:15

• 10:5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the missing number in the ratio table?

• 21
• 24
• 27
• 25

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Solve for A in the table.

• A= 40
• A= 10
• A= 9
• A= 45

Tags

CCSS.5.OA.B.3

A car travels 120 miles in 2 hours. What is the car's speed in miles per hour?

• 50 mph

• 55 mph

• 60 mph

• 65 mph

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A store sells 8 oranges for $4.00. What is the cost per orange?

• $0.40

• $0.50

• $0.60

• $0.70

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2