# Math

- Created by: SamLordNord
- Created on: 22-05-17 17:23

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- Maths
- Ratios
- To reduce a ratio to its simpler form, divide all the numbers by the same thing.
- If you know the ratio between parts and the actual size of one part, you can scale up

- Product of prime factors leading to HCF and LCM
- LCM-Lowest common multiple
- The smallest number that will divide by all the numbers in question

- Method:1)List the factors of all the numbers 2)Find the biggest one that`s in the list
- HCF-Highest common Factor
- The biggest number that will divide into all the numbers in questions

- LCM-Lowest common multiple
- Tree Diagrams
- Method:1)On any set of branches which meet at a point the probability must add up to 1 2)Multiply along the branches to get the end probability 3) Check your diagram-the end probabilities must add up to 1 4)To answer any question add up the relevant end probabilities

- Vectors
- Colum vectors: (2/5)

- Ratios

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