Yes, 0.25 is a rational number. A rational number is defined as any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.
In the case of 0.25, it can be written as the fraction 25/100. Both 25 and 100 are integers, and since 100 is not zero, this meets the criteria for a rational number. Additionally, this fraction can be simplified to 1/4, further confirming that 0.25 is indeed a rational number.