Equivalent ratios

In this lesson, we will learn how to represent ratios pictorially and use these representations to justify the equivalence of ratios.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Fill in the gap: Two quantities are said to be in the same ratio, if there is an equivalent _____________ relationship between them.

1/5

Q2.Fill in the gap: 2 litres of red paint and 5 litres of white paint are in the same_______ as 5 litres of red paint and 12.5 litres of white paint.

2/5

Q3.I mix 2 litres of squash with 3 litres of water. I need more that tastes the same. How much squash should I mix with 9 litres of water?

3/5

Q4.Fill in the missing ratio: I mix 2 litres of squash with 7 litres of water. The ratio of squash to water is …. : ....

4/5

Q5.Fill in the missing number: I mix 4 litres of yellow paint with 10 litres of red paint. The ratio of yellow to red is …. : 5.

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Fill in the gap: Two quantities are said to be in the same ratio, if there is an equivalent _____________ relationship between them.

1/5

Q2.Fill in the gap: 2 litres of red paint and 5 litres of white paint are in the same_______ as 5 litres of red paint and 12.5 litres of white paint.

2/5

Q3.I mix 2 litres of squash with 3 litres of water. I need more that tastes the same. How much squash should I mix with 9 litres of water?

3/5

Q4.Fill in the missing ratio: I mix 2 litres of squash with 7 litres of water. The ratio of squash to water is …. : ....

4/5

Q5.Fill in the missing number: I mix 4 litres of yellow paint with 10 litres of red paint. The ratio of yellow to red is …. : 5.

5/5

Video

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Equivalent ratios quiz

Now apply your learning to this quiz!

Q1.Fill in the gaps: If the proportion between the ____________ is constant, then the ratios are __________________.

1/5

Q2.The ratio of the top bar is 1 : 5 : 2. What is the equivalent ratio shown on the bottom bar?

2/5

Q3.Squash and water are mixed in the following ratios to make a drink. Which drinks will taste the same? A) 4:10 B) 3:8 C) 9:24 D) 15:25

3/5

Q4.Light green paint is mixed with green : white as 2: 5. What ratio would be needed for 12 units of green?

4/5

Q5.Light green paint is mixed with green : white as 2: 5. Write the ratio for the white paint needed for 1 unit of green.

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Equivalent ratios quiz

Now apply your learning to this quiz!

Q1.Fill in the gaps: If the proportion between the ____________ is constant, then the ratios are __________________.

1/5

Q2.The ratio of the top bar is 1 : 5 : 2. What is the equivalent ratio shown on the bottom bar?

2/5

Q3.Squash and water are mixed in the following ratios to make a drink. Which drinks will taste the same? A) 4:10 B) 3:8 C) 9:24 D) 15:25

3/5

Q4.Light green paint is mixed with green : white as 2: 5. What ratio would be needed for 12 units of green?

4/5

Q5.Light green paint is mixed with green : white as 2: 5. Write the ratio for the white paint needed for 1 unit of green.

5/5

Lesson summary: Equivalent ratios

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