Answer:
11/25 < 9/20
Explanation:
The common denominator is 100
This mean you want to multiply both numbers so that the denominator on both fractions equals 100
This means 11 needs to be multiplied by 4 as does 25; and 9 needs to be multiplied by 5 as does 20
This also means that 11/25 is smaller than 9/20