A fraction is written in terms of two parts: the number on top is called the numerator and the number on the bottom is called the denominator. We can use the division method to solve this question. To get a decimal, simply divide the numerator 45 by the denominator 7:
45 (numerator) ÷ 7 (denominator) = 6.43
As a result, you get 6.43 as your answer when you convert 1 38/7 (or 45/7) to a decimal.