What expression is equivalent to 81 1/3

This expression above which would be , we would practically want to convert this expression either bigger, which a lower number, but also, we could make this expression bigger, but within a bigger fraction form. 

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This would practically be an improper fraction, but however, this would also be equivalent to the expression written above. If we were to just convert this to a proper fraction, this however, would just be exactly the same fraction, just in a different form.

Something that is true about that is that it has numbers

On monday,mrs.wise bought 3 lbs of apples at $4per lb= 4*3=$12on tuesday ,20%off and she buy 5 lbs of apples = $4-20%=3.20*5lb=$16example: other wise when she buy 5lbs on monday she have to spend 4*5=20