Answer:
1/4 and 1/5
Step-by-step explanation:
The first thing is to define what is the least common denominator (LCD) that would be the smallest number that can be a common denominator for a set of fractions. Also known as the least common denominator, it is the lowest number you can use in the denominator to create a set of equivalent fractions that have the same denominator.
If we want it to be 20, we must decompose the number:
5 * 4
In other words, the fractions could be:
or also:
1/4 and 1/5
