Page 59 - Year 10
P. 59

Hospitality & Catering: 13 of 13            Maths: FOUNDATION: Fractions and Percentages: 1 of 9







                     What you need to know:                                        What you need to know:                    What you need to know:

                     Fractions, Decimals and Percentages                           Comparing FDP                             Ordering FDP
                     You need to be able to convert between fractions, decimals and   To be able to compare values we need to   To be able to order FDP we need to
                     percentages.                                                  get them in the same format.              write them all in the same format.
                                                                                                                             Example:  Order  from  smallest  to
                     Percentages:                                                  Example: Which is greater, 78% or 0.8?    largest
                                                                                   We  can  either  change  the  0.8  into  a
                                                                                   percentage or the 0.78 into a decimal.
                                                                                                                             You can choose to convert them all
                                                                                   0.8 = 80%                                 to    fractions,   decimals    or
                                                                                   Which is greater 78% or 80%?              percentages as long as you convert
                     Decimals:                                                     80% is greater so the answer is 0.8.      them all into the same.


                                                                                   Example: Which is greater  17            0.87?  Changing them to percentages:
                                                                                                           20                 1                        1
                                                                                                                               = 25%  0.19 = 19%  0.3 = 30%  = 20%
                                                                                                                              4                        5
                     Fractions:                                                          17     85              87
                                                                                            =                     0.87 =     From smallest to biggest
                                                                                         20    100              100
                                                                                                                                  19%, 20%, 25%. 25%, 30%
                                                                                   87 is bigger than 85 so the answer is 0.87
                                                                                                                             Answer:
                                                                                                                                          1 1
                                                                                                                                     0.19,  , , 26%, 0.3
                                                                                                                                          5 4

                     These are some conversions that you                           You need to be able to:
                     need to learn.
                     Top tips- to convert:                                         •   Convert between simple fractions, decimals and percentages.
                     •   Percentages to decimals divide by 100                     •   Convert between recurring decimals and percentages.
                     •   Decimals to percentages multiply by 100                   •   Compare fractions, decimals and percentages.
                     •   Percentages to fractions put over 100                     •   Order fractions, decimals and percentages by converting.
                     •   Fractions make sure the denominator is 100
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