The fraction 1/3=0.3333333... In this case it is better to use fractions just like in all cases. There will be no case when decimals will work better than fractions however, if a test says to use decimals; USE THEM!
when you are trying to find a price
There are times when working with fractions is more convenient than working with decimals.
Yes providing you change the fractions into decimals or change the decimals into fractions
Because that it s harder to work out percentages than fractions and decimals
Decimals and fractions are PART of a whole
Different representation are better for different purposes.
Whether fractions work better than decimals or less as well is very much a question of your preference.
All numbers can be changed from fractions to decimals.
Because decimals are a form you use regularly like with money, but with fractions, its not used all the time such as a decimal is used.
All terminating decimals can be written as fractions.