4 1/3 Hope this helped :) The explanation: 3 goes into 13 4 times. So 4 is your whole number. You have 1 number left over so that is your numerator. Your denominator does not change. You can not simplify any more.
4 1/3 because 3 times x equals the closest to 13. 3 times four is 12 and it is the closest to thirteen as it can get being under 13, that remainder or remaining one stays one. 4 1/3