A fraction is usually split into two parts: the first part is the number on top, called the numerator; and the second part is the number on the bottom, called the denominator. These are both separated by a line called the “divisor line”. We can use the division method help to solve this question: to get a decimal, simply divide the numerator 135 by the denominator 100 (which you can enter in any calculator):
135 (numerator) ÷ 100 (denominator) = 1.35
And finally, you get 1.35 as your answer when you convert 1 35/100 (or 135/100) to a decimal.