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 1052250 by the denominator 42050 (which you can enter in any calculator):
1052250 (numerator) ÷ 42050 (denominator) = 25.02
And finally, you get 25.02 as your answer when you convert 25 1000/42050 (or 1052250/42050) to a decimal.

