Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Maths Revision: Ratios and Rates
Transcript of Maths Revision: Ratios and Rates
1 to 1 Word Form
1/1 Fraction Form
1:n/m:1 Unit Ratio Please do not copy! Equivalent Ratios Ratios with the same meaning Simplify
2:4 1:2 1/2 2/4 Prime Factorization Unit Ratio Ratios with a denominator to 1
(Simplify) A:B/A 1:B/A 1:n
A:B/B 1:B/A m:1 Conversion of A and B Comparing Ratios Change order to unit ratio e.g.
Which class has the highest BOYS:GIRLS ratio?
Class 1 Class 2 Class 3
2:3 3:4 1:5 1. Compare your question to ratio given If same order, m:1
e.g. Highest B:G If not, 1:n
e.g. Lowest G:B 2. Convert
3. Order Use m:1 Class 1 Class 2 Class 3
2/3:1= 0.6: 1 3/4:1=0.75:1 1/5:1=0.2:1 Class 2 Class 1 Class 3 4. Choose your answer Highest B:G Ratio Multiply Method 1: Find the Unknown
e.g. Solve for Unknown
Method 2: Fractions
7.5=c Find A:B:C from A:B/B:C Cross Product
B:C=7:5 4 : 3
7 : 5
28:21:15 Multiply as follow Line up common value Rearrange and simplify as needed Modeling Using Ratios e.g. 250 ml lemon juice, how
much water:lemonade? Water=5/6
250x1/6 yield 6
208:42 Ratios with Total e.g. Jim:Steve
4:3=7 Total:420 420/7x3=S
240:180 Rates A specific type of ratio that measures changes using different units Unit Rate: Used for comparison (Rate per 1 unit) Unit/$ or $/Unit