Fractions,+Decimals+and+Percentages

Fractions, Decimals and Percentages. By Alanya Coop, Sabrina Whight, Charlotte Burnett and Amy Winters.

To convert a fraction into a decimal, you divide the numerator by the denominator, as demonstrated below. ¼ 1÷4= 0.25 To convert a fraction into a percentage, you divide the numerator by the denominator, and multiply the answer by 100. ¼ 1÷4= 0.25x100= 25% To convert a decimal into a fraction, times it by 100 and put it as the numerator, and then put it over a denominator of 100. You can also work out the equivalent fractions as shown in the example below. 0.75 0.75x100= 75 75/100= ¾ To convert a decimal into a percentage, multiply it by 100. 0.5 0.5x100= 50% To convert a percentage into a decimal, divide it by 100. 50% 50÷100= 0.5 To convert a percentage into a fraction, put the number over a denominator of 100. You can work out the equivalent fractions as shown below. 0.75 75/100= ¾

Here's quite a fun little tool you could use in your classroom for quickly converting a fraction into a decimal: @http://www.amblesideprimary.com/ambleweb/mentalmaths/fracto.html

Another good website is the one below which has a list of lots of different interactive maths games for fractions, decimals and percentages. @http://www.woodlands-junior.kent.sch.uk/maths/fractions/

A good resource to use would be something like the one below:

you could play lots of games with these to help memorise the more common conversions. A game like SNAP for example, matching the fraction to the corresponding percentage or decimal.