A mixed number is when you have both a whole number and a fraction put together. 11=8+3, right? So, 11/8=(8+3)/8. This is also equal to 8/8 + 3/8. 8/8=1 (because a number divided by itself equals 1), so 11/8 = 1 + 3/8. To write this as a mixed number, just take out the + sign: 1 3/8.
Answer: 1 3/8