Ratio and proportion

Ratio

Name: ______________________________Date: ______________Score: ______ / 20

1.
What is a ratio?
1. AA way of comparing two or more numbers
2. BA way of adding two numbers
3. CA number with a decimal point
4. DThe total of two numbers
2.
A bowl has 6 apples and 3 oranges. What is the ratio of apples to oranges?
1. A6:3
2. B3:6
3. C6:9
4. D2:3
3.
Write 6:3 in its simplest form.
1. A2:1
2. B3:1
3. C1:2
4. D6:3
4.
Write 3:12 in its simplest form.
1. A1:4
2. B1:3
3. C3:4
4. D1:9
5.
Write 21:14 in its simplest form.
1. A3:2
2. B2:3
3. C7:2
4. D3:1
6.
Write 12:9 in its simplest form.
1. A4:3
2. B3:4
3. C12:9
4. D6:3
7.
Write 24:8 in its simplest form.
1. A3:1
2. B1:3
3. C4:1
4. D12:4
8.
Write 150:25 in its simplest form.
1. A6:1
2. B5:1
3. C1:6
4. D30:5
9.
Write 15:300 in its simplest form.
1. A1:20
2. B1:15
3. C3:60
4. D1:2
10.
Complete the equivalent ratio: 2:3 = 12:? What number replaces the ?
11.
Complete the equivalent ratio: 5:7 = ?:21. What is the missing number?
12.
Complete the equivalent ratio: 1:4 = 3:? What is the missing number?
13.
4:6 is equivalent to 2:3.
True False
14.
12:16 is equivalent to 2:3.
True False
15.
18:27 is equivalent to 2:3.
True False
16.
Which ratio is equivalent to 3:4?
1. A24:32
2. B6:9
3. C20:25
4. D9:16
17.
Which ratio is equivalent to 4:5?
1. A28:35
2. B16:25
3. C8:15
4. D12:20
18.
In a survey the ratio of people who preferred apples to bananas was 3:5. 45 people preferred bananas. How many people preferred apples?
19.
In a survey the ratio of apples to bananas was 3:5. 45 people preferred bananas and 27 preferred apples. How many people took part in the survey altogether?
20.
Pierre plants 4 carrots for every 3 onions. He plants 48 carrots. How many onions does he plant?

Answer key

Ratio and proportion — Ratio

1.A. A way of comparing two or more numbers
2.A. 6:3
3.A. 2:1
4.A. 1:4
5.A. 3:2
6.A. 4:3
7.A. 3:1
8.A. 6:1
9.A. 1:20
10.18
11.15
12.12
13.True
14.False
15.True
16.A. 24:32
17.A. 28:35
18.27
19.72
20.36