Usually the Roman number V. For example Henry V is Henry the 5th.
one and one-fifth
Fifth Century - 5th Century.
3^(5) = 3 x 3 x 3 x 3 x 3 = 243 The word 'exponent' can also be shown as ' index number' or 'power'.
10 to the fifth power = 105
Fifty fifth is the way to write it.
0.2
After the fourth.
0.2
One-fifth is 1/5 or 0.2
five and one fifth = 5 1/5
The fifth presidents name was Harry Balsonya
20%