minus three fifths
Three fifths minus fifteen equals -14 and two fifths.
2
2 2/5
-2 and 1/5
3/5 - 2/5 = 1/5
3 and 2/5
One whole minus two fifths is three fifths.
two fifths
Two and two fifths. Five minus two and three fifths = two and two fifths
six and three fifths
Call it 21 fifths minus 13 fifths, ie 8 fifths which is one-and-three-fifths