Step-by-step explanation:

Answer:
a) ⅖+⅓ = 6/15 + 5/15 = 11/15
b) 5/9 - 1/2 = 10/18 - 9/18 = 1/18
<span>8 1/2 divided by 5 2/3 is </span>1 1/2
Then mark it down by less then 1%, of by whatever the number would be.
Answer: divide the big number by 2
Step-by-step explanation: dude it literally tells you the answer almost xD jsut divide the big number by 2