To convert the improper fraction 13/9 into a mixed number, we first need to divide the numerator (13) by the denominator (9).
When we divide 13 by 9, we see that 9 goes into 13 once, which gives us a whole number part of 1. To find the remainder, we subtract 9 from 13, which leaves us with 4. Therefore, the improper fraction can be expressed as:
1 (whole part) and 4 (remainder) over 9 (denominator).
Thus, 13/9 as a mixed number is 1 4/9.