# Maths unit A:Ratios

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• Created by: rvsn
• Created on: 16-11-14 22:21
How do you simplify a ratio?
Find the HCF and divide all the numbers by it
1 of 7
Simplify 2:4:6
1:2:3
2 of 7
How do you work out how much each part is worth out of a number?
1. add the parts to find out what each part is out of 2.Put each part in a fraction over the total 3.find the fraction of the number 4. so that would be (fraction)xnumber
3 of 7
If 1.5kg of salt costs £3, then how much will 5kg cost?
£10
4 of 7
How is area ratio proportionate to length ratio?
The area ratio is length ratio squared
5 of 7
How is volume ratio proportionate to length ratio?
The volume ratio is the length ratio cubed
6 of 7
If the kids weight is 30kg when it was at it's normal size of 1m, what will be its mass when it is blown up to 20m?
use a ratio in the form of 1:n, 240000kg or 240 tons (1000kg in a ton)
7 of 7

## Other cards in this set

Simplify 2:4:6

1:2:3

### Card 3

#### Front

How do you work out how much each part is worth out of a number?

### Card 4

#### Front

If 1.5kg of salt costs £3, then how much will 5kg cost?

### Card 5

#### Front

How is area ratio proportionate to length ratio?