Fractions, Decimals and Percentages (Edexcel GCSE Maths): Flashcards

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Fractions, decimals and percentages
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What concept do fractions, decimals & percentages all represent?

Proportion

Convert fraction to decimal: method

Divide numerator by denominator

Convert decimal to percentage: method

Multiply by 100

Convert percentage to decimal: method

Divide by 100

Define terminating decimals

Decimals that end after a certain number of decimal places

Convert terminating decimal to fraction: method

Put decimal digits over appropriate power of 10

12\frac{1}{2} as decimal and percentage

0.50.5 and 50%50\%

14\frac{1}{4} as decimal and percentage

0.250.25 and 25%25\%

34\frac{3}{4} as decimal and percentage

0.750.75 and 75%75\%

13\frac{1}{3} as decimal and percentage

0.333...0.333... and 3313%33\frac{1}{3}\%

15\frac{1}{5} as decimal and percentage

0.20.2 and 20%20\%

After converting to fraction, always...

Simplify to lowest terms

720\frac{7}{20} as a decimal

0.350.35

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