No.
Yes, 2 fifths is half of 4 fifths.
one and a half.
4/5
Four-tenths, or two-fifths.
2 and 4 fifths rounded to the nearest half is three (3).
10.8 or 10 and 4/5
4/5 minus 1/2 = 3/10
seven and 4 fifths
4 and two fifths
4/15
4 and 2 fifths= 4.42 and 1 half= 2.54.4 * 2.5 = 11
four tenths or two fifths. Multiply out the top line 1x4 = 4 / multiply out the bottom line 2x5 =10. 4 over(upon) 10 is the same as 2 over(upon) 5