428/640 = 107/160
640/1
160 x 4 = 640, therefore 160 is 1/4 of 640.
428 is an integer and not a fraction. However, it can be expressed in rational form as 428/1. That is the simplest form. There is no sensible way of writing it as a mixed number.
4.28 as a fraction is 4 28/100. In simplest form it is 4 7/25.
1/640
640 g is 16/25 (sixteen-twenty fifths) of 1 kg.
It is equal to 1.
1 sq mile = 640 acres.
0.0125
0.01 is equal to 1/100 in fraction
It is equal to 1
if the fraction is 1/1 its one whole