Ratio

Simplest Form

10

36 : 54

2 : 3

20

75 : 250

3 : 10

30

72 : 48 : 54

12 : 8 : 9

40

132 : 144 : 12

11 : 12 : 1

50

57 : 342

1 : 6

Equivalent Ratio

10

5 : 8 = 40 : _____

64

20

3 : 8 : 13 = ______ : 24 : ______

9, 39

30

72 : 54 = 40 : ______

30

40

34 : 256 = 51 : ______

384

50

_____ : 55 : 45 = : 7 : _____ : 63

5, 77

Divide to find all Equivalent

10

20 : 32

10 : 16

5 : 8

20

45 : 75

15 : 25

9 : 15

3 : 5

30

42 : 30 : 78

21 : 15 : 39

14 : 10 : 26

7 : 5 : 13

40

48 : 36

24 : 18

16 : 12

12 : 9

8 : 6

4 : 3

50

144 : 120 : 108

72 : 60 : 54

48 : 40 : 36

36 : 30 : 27

24 : 20 : 18

12 : 10 : 9

World Problem 1

10

There are 23 students in P6A and 21 students in P6B. What is the ratio of the number of students in P6B to the number of students in P6A?

21 : 23

20

The ratio of boys to girls in P6 is 3 : 4. There are 42 boys. How many girls are there?

42 ÷ 3 = 14 (1 unit)

14 x 4 = 56

30

A table costs $275. A television costs $325 more than twice the price of the table. Find the ratio of the cost of the television to the cost of the table in simplest form.

275 x 2 = 550

550 + 325 = 875

875 : 275 = 35 : 11

40

Sara bought a calculator, a flash drive, and a phone case. The ratio of the cost of the calculator to the cost of the flash drive to the cost of the phone case was 7 : 13 : 4. She paid $312 for all three items. How much did the phone case cost?

312 ÷ 24 = 13

13 x 4 = 52

50

A company gave a total of $15500 to three charities. Charity A received $4000, Charity B received $5500, and Charity C received the remaining amount. What is the ratio of the amount Charity A received to the amount Charity B received to the amount Charity C received in simplest form?

15500 - 4000 - 5500 = 6000

4000 : 5500 : 6000 = 8 : 11 : 12

World Problem 2

10

Zoe bought 3kg of apples and 4kg of oranges. What is the ratio of the weight of apples to the weight of the fruit she bought in all?

3:7

20

Chris had 198 game cards at first. He gave away 54 cards to his friend. Find the ratio of the number of cards Chris gave away to the number of cards he had left in simplest form.

198 - 54 = 144

54 : 144 = 3 : 8

30

There are 288 passengers seated on a train. The ratio of the number of passengers who are seated to the number of passengers who are standing is 9 : 13. How many passengers are there in total?

288 ÷ 9 = 32

9 + 13 = 22

32 x 22 = 704

40

The ratio of the number of fiction books to the number of non-fiction books in a library is 8 : 5. There are 1074 more fiction books than non-fiction books. How many non-fiction books are there in the library?

1074 ÷ 3 = 358

358 x 5 = 1790

50

There are some apple trees, banana plants and pineapple plants in a garden. The ratio of the number of apple trees to the number of banana plants to the pineapple plants is 6:8:9. If there are 963 more pineapple plants than apple trees, how many banana plants are in the garden?

963 ÷ 3 = 321

321 x 8 = 2568