What is 8 5/6 - 4 9/10

First you make it an improper fraction:

8 5/6 = 53/6

4 9/10 = 49/10

then you find a common denominator - 30

so then 53/6 would mulitply by 5 = 265/30

49/10 multiplies by 3 - 147/30

do calculation:

265-147 = 118

118/30 and you can make it a mixed number and reduce to:

3 14/15