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Fraction, decimals and percentages. Parental Guide

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These are just different ways of describing a quantity. 25% 0.25 25 100

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Converting between% and fractions The clue is in the sign and the name. % is made up of a 1 and two 0’s and perCENT means per100. So 15% means 15 per 100 = 15 100 »

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Converting between%, fractions and decimals You have to remember your place values. U. 1 10 1 100

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Converting between%, fractions and decimals E.g 5% = 5 per 100 E.g 20%= 20 per 100 E.g 23% is 3% and 20% U. 0.05 0.20 0.23 1 10 1 100

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Fractions to decimals A fraction conversion can be done two ways. Method 1: Traditional 3 8 ==8÷30.375 Method 2: Using the unitary method This is the preferred method since we will use this for many calculations across the school.

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Using the unitary method Step 1: You are changing a fraction into a decimal. So Write two column headings The first thing to consider is that 1 = to a whole= 8 eighths The next thing is to write in the value you want e.g. And a question mark for what you want to find. Write in a unit of the fraction Then using division and multiplication work down the column you know the vales of, then perform the same calculations down the column you don’t. FracDec 1 ? 8 8 3 8 3 8 1 8

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Practice x3 FracDec 1 x3 8 8 3 8 1 8 ÷8 ÷8 0.125 0.375 Now you have a go at 7 40

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Conversion Chart FractionDecimalPercentage 0.04 0.14 67% 4 5 7 8

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Answers FractionDecimalPercentage 0.880% 0.87587.5% 4/100 (1/25) 0.044% 14/100 (7/50) 0.1414% 67/100 0.67 67% 4 5 7 8

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