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 20153 by the denominator 137 (which you can enter in any calculator):
20153 (numerator) ÷ 137 (denominator) = 147.1
And finally, you get 147.1 as your answer when you convert 147 14/137 (or 20153/137) to a decimal.