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 10038 by the denominator 150 (which you can enter in any calculator):
10038 (numerator) ÷ 150 (denominator) = 66.92
And finally, you get 66.92 as your answer when you convert 66 138/150 (or 10038/150) to a decimal.