15/1 to a mixed number

The fraction 15/1 as a mixed number is 15

Divide the numerator (15) by the denominator (1): the quotient 15 is the whole part and the remainder 0 is the numerator of the fractional part, over the same denominator. Reduced to lowest terms that gives 15.

Multiply the whole part by the denominator and add the remainder back: 15 × 1 = 15, and 15 + 0 = 15 — exactly the numerator you started with.

15 ÷ 1 = 15.