Ratios and Rates

What's the greatest common factor of 35 and 28.

• 4

• 7

• 5

• 2

What's the GCF of 12, 24, 32?

• 4

• 2

• 6

• 8

What's the least common multiple of 15 and 35?

• 15

• 5

• 105

• 10

What's the LCM of 3, 5, 15?

• 12

• 5

• 3

• 15

Express the statement as a ratio (in simplest form):

21 hummingbirds to 7 butterflies

• 3:1

• 1:3

• 21:7

• 7:21

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Choose all the possible ways the following statement can be written as a ratio (in simplest form):

12 brown dogs to 24 black dogs

• 1:2

• 1/2

• 1 to 2

• 1²

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

"4 pencils and 36 pens"

How would you write the ratio (in simplest form) and explain the meaning of the ratio?

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Tiffany went to the zoo and counted 16 giraffes and 12 elephants. She wants to express the ratio of giraffes to elephants in simplest form and explain the meaning. Which would be the correct answer?

• 3:4 ; For every 3 giraffes there are four elephants

• 16:12 ; For every 16 giraffes there are 12 elephants

• 12:16 ; For every 12 elephants there are 16 giraffes

• 4:3 ; For every 4 giraffes there are 3 elephants

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Alex spend $12 on a package of 6 collection cards. How much did he pay for each collection card?

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Alana biked 45 miles in 3 hours. How many miles did she bike per hour?

• 5 miles

• 15 miles

• 9 miles

• 22.5 miles

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2