Fractions, decimals and
percentages: Percentages. 

3rd year of secondary education.  
Percentages and fractions  
20% of an amount is the same as a fifth: of an amount is the same as 75%: = * 100 % = 75 % We can express any percentage as a fraction and vice versa.  
 
Exercise 9 a) Express the following fractions as percentages: 1/2, 1/4, 3/4, 9/10, 1/5 Check your results in this window.  
Exercise 10 Express the coloured parts of the following shapes as fractions and percentages of the whole shape:

Ángela Núñez Castaín  
Spanish Ministry of Education. Year 2001  
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