Three fifths of fifty is 30.
Fifty three hundredths is one of an infinite number of possible answers.
0.0225
20
4/55 (four fifty fifths)
44
180
minus three fifths
Assuming that you mean "fifths", the answer is three fifths.
six and three fifths
4/5 = 40/50
7/55 = 0.12727...
3/5 of 50 is 30.