What is a ratio?

abbylebus
Mind Map by , created over 6 years ago

Maths (Number) Mind Map on What is a ratio?, created by abbylebus on 05/13/2013.

118
0
0
Tags
abbylebus
Created by abbylebus over 6 years ago
Math's Core 1
mitchcharlie
Using GoConqr to study Maths
Sarah Egan
A level Henry VIII: Foreign policy
avocadolover
Core 1.3 Energy Generation, Storage and Use
T Andrews
GCSE Maths: Algebra & Number Quiz
Andrea Leyden
All AS Maths Equations/Calculations and Questions
natashaaaa
Maths Revision- end of year test
hannahsquires
Statistics Key Words
MrOMeara
What is a ratio?
1 A ratio is used to compare two or more quantities. The symbol for ratio is two dots (:).
2 For example, 12 red apples compared to 20 green apples is written as 12 : 20
3 To put ratios in their simplest form, divide both parts of the ratio by the highest common factor. (HCF)
3.1 For example: 12 : 20 (divide both parts by 4) = 3 : 5
3.1.1 To express the ratio 3 : 5 in the ratio 1 : n, divide both sides by 3.
3.1.1.1 3 : 5 =3/3 : 5/3 = 1 : 1 - 2/3 Or 1 : 1.6666....

Media attachments