What is 5 sixths plus 4 fifths?

To add 5 sixths and 4 fifths, first find a common denominator, which is 30. Convert 5 sixths to 25 thirtieths and 4 fifths to 24 thirtieths. Adding these gives 25/30 + 24/30 = 49/30, which can also be expressed as 1 and 19/30.