125
1/125
1/125
the fifth cube number is 125 its easy really its 5 times 5 times 5=125
One-fifth of 125 is 25, so three-fifths of 125 is (25 x 3) = 75.
you divide the whole which is 125 by 5 because 20% is fifths so one fifth of 125 equals 25
50
1/5 (one fifth)
125/64
4 goes into 125 thirty one times with a remainder of one or 31.25 times
one fifteenth
(1/25) / 5 = 1/125