Notes
Maths notes
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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
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- IGCSE Mathematics Note on Maths notes, created by Molly Hammond on 15/05/2017.
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- Molly Hammond
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