This week i learnt how to simplify and express as a positive. You take the fraction and flip it to change the negatives to positives, but leave the exponents in the brackets negatives/positives. Then take the exponents outside of the brackets and multiply them but the expontents and the number inside the brackets. Then subtract the top exponents by the bottom and then multiply the ten by the sixty-four. Finally take the last negative and put it at the bottom of the fraction to make it a positive.