Is 0.54 a rational number why or why not

Yes.

http://www.mathsisfun.com/rational-numbers.html

0.54 is a rational number = 54 / 100 = 2 * 27 / 2 * 50 = 27 / 50

But if 0.54 mean 0.5454545454 then:

100 * 0.5454545454 = 54.54545454

100 * 0.5454545454 - 0.5454545454 = 99 * 0.5454545454 =

54.54545454 - 0.54545454 = 54

99 * 0.5454545454 = 54 Divide both sides by 99

0.5454545454 = 54 / 99 = 6 * 9 / 11 * 9 = 6 / 11

Yes, 0.54 is a rational number. A rational number is a number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

To determine if 0.54 is rational or not, we need to check if it can be expressed as a fraction. We can start by converting it into a fraction by representing 0.54 as 54/100.

Since 54 and 100 are both integers, and the denominator is not zero, 0.54 can indeed be expressed as a fraction. Therefore, it is a rational number.