Maths notes

Seite 1

Topic 1 - Fractions

Adding - find a common denominator then add the numerators

Subtracting- find a common denominator then subtract the numerators

Multiplying - simply multiply across

Dividing - flip the second fraction then multiply across

Turning Recurring Decimals Into Fractions

Make the decimals equal then subtract

x = 0.333...

10x = 3.333...

10x - x = 9x

3.333... - 0.333... = 3

9x = 3

x = 1/3

Quick note! A reciprocal is when you flip

a number or fraction e.g. 5 --> 1/5