9 and 6/8
2
13
2
8 and 5 over 6
If you mean (2/5 times 30) minus (4/3 times 15/8) then the answer is 19/2 or 9.5
3/10 - 4/5 = 3/10 - 8/10 = -5/10 = -1/2
5/8 (7/8 - 2/8)
4/5 - 1/8 = 32/40 - 5/40 = 27/40
To subtract mixed numbers, we need to convert them to improper fractions. 4 and 1/8 as an improper fraction is 33/8, and 2 and 5/8 is 21/8. Subtracting 33/8 by 21/8 gives us 12/8, which simplifies to 1 and 1/2.
-3
25/40 - 12/40 = 13/40