Because they are usually easier to comprehend. 1/3 is easier to grasp than 137/411.
However, percentages can sometimes involve the opposite process.
you have to reduce it.reduce means to get smaller
With a lot of difficulty......
12/4
Finding the LCM will make adding and subtracting fractions easier.
To reduce fractions
It helps to reduce fractions.
It helps to reduce fractions.
You could, if you wished to.
It helps to reduce fractions.
Reduce it, if possible.
You reduce fractions to lowest form, if necessary, but you don't reduce whole numbers.
They are equivalent fractions as for example 9/12 can be reduced to 3/4