nine tenths
four fifths
negative 4.5
Three and four-fifths
1/3 plus 1/5 plus 4/10 = 0.933333
1 and 2/15
14 and 3/5
six and three-fifths
four fifths
1 1/5 + 3 2/5 + 4 1/5 = 8 4/5
One fifth plus one fifth is two fifths (2/5).
The sum of 1/5 and -4 is -3 4/5