Ratios With Three Quantities

put the following ratio in the simplest form 12:18 :36

• 1: 2 : 7

• 2: 3 :6

• 5: 4 : 6

• 3: 4 : 8

• 6  : 4  :  3

• 4 : 3 : 6

• 3 : 4 :  5

•  3 : 6 : 4 

put the following in the simplest form 2.4 : 1.8 : 3

• 5 : 3 : 3

• 4 : 7 : 2

• 5 : 3 : 4

• 4 : 3 : 5

• 9 : 5 : 14

• 14 : 5 : 9

•  8 : 9 : 5

• 3 : 7 : 2

"A rectangle has a perimeter of 168 cm "

This tells you ... ?

• ratio

• sum

• difference

"There are 45 more children than men "

This tells you ....?

• sum - ratio

• difference

• difference - ratio

• sum

Elsa builds 36 more snowmen than Anna

• The number of Elsa’s snowmen to Anna’s snowmen is 7:3

• How many snowmen does Anna build?

• 27

• 12

• 36

• 24