One fifth of a gallon. The liquor industry started this when instead of raising the price on a quart of whiskey they reduced the bottle size to one fifth.
It is four/fifths from being a whole if your a pessimist, If your an optimist you only need four more fiths to make a whole.
Yes, saying a fifth is just the same as saying 1 fifth. much like saying i want a sweet or i want one sweet.
One fifth of 30 always equals 6
12cm
One-fifth of the tank
352 yards
20 % is one fifth.
One hundred (100) pence to the pound, so one fifth (1/5) of a pound is twenty (20) pence
One fifth plus one fifth is two fifths (2/5).
1/5 of 2.20 is 0.44
four fifths
started with 100
one fifth