Why is it important?

Fractions are regularly used in the world of work and daily life.
Decimal fractions are important for conversions in measurement and money and understanding what proportion of a whole is represented. It is also important when interpreting answers on calculators.
Percentages: used in a wide variety of contexts, many of which are used in everyday life.
The ability to interchange between a fraction, decimal fraction and percentage is a skill that allows for different ways to solve problems efficiently, including mental calculations.
How is this used in real life contexts?
Fractions – sharing a birthday cake equally amongst a group, ½ price offers, amount of fuel in car tank, following recipes with fractional amounts (1/2 cup of flour).
Decimal fractions – Used when converting currencies.
Percentages – Statistics, special offers in shops/supermarkets, test results, 25% off, 50% extra free,buy one get one free (work out where to find the best value).