This is because first you must make them improper fractions. The equation should look like this, 13/3•17/8=? So to solve this you multiply the numerators and denominators. That should give you 221/24. Lastly you must change the improper fraction into a mixed number, and that would give you 9 5/24 as your final answer.
We can convert the percentage to 0.075 to make it easier. Then, multiply 1150 by 1.075 to get 1236.25. We add the one because we need to include the initial $1150.
