FRACTIONS, DECIMALS & PERCENT

Decimals, Fractions & Percentages

Image source: Microsoft clipart1

FractionsNumbers that are a ratio of two numbers

= 1:2 a part of a whole

Image source: http://commons.wikimedia.org/wiki/File:Pumpkin-Pie-Slice.jpg2DecimalsDecimals are used for numbers between whole numbers

pi = 3.140.158TENTHSHUNDRETHSTHOUSANDTHSDecimal to FractionWrite: decimal/1Multiply the numerator and denominator by 10 for every number after the decimal pointSimplify (or reduce) the fraction4Decimal to Fraction0.4

0.35Fraction to DecimalDivide the numerator (top number) by the denominator (bottom number)Fraction to DecimalPercentages

Image source: http://commons.wikimedia.org/wiki/File:Sale_sign.jpg8Decimal to PercentageMove the decimal two places to the rightORMultiply the decimal by 100Decimal to Percentage0.850.850.20.20

85%20%RelationshipQuestion: How are FRACTIONS, DECIMALS and PERCENTAGES related?

Answer: They all represent parts of a whole

Online ActivityGo to www.khanacademy.orgSearch for:Representing a number as a decimal, percent and fractionClick on the second linkView the video Click on Practice this concept

Video takes 5:25 minuteshttps://www.khanacademy.org/math/arithmetic/decimals/percent_tutorial/v/representing-a-number-as-a-decimal--percent--and-fraction-212