The answer depends on the units for 50.
1km = 1000m20m/1km:= 20m/1000m= 2/100 or 1/50
As a fraction it is 50/1000 or 1/20 in its simplest form
1km = 1000m520m/1km:= 520/1000 or 13/25 of 1km
If you mean 700cm then it is 7/10 of 1km
fraction: 77/10001 km = 1000 m77m/1km = 77m/1000m = 77/1000
Well, honey, if you wanna get technical, 50 meters is 1/20th of a kilometer. So, in fraction form, that would be 50m/1000m, which simplifies to 1/20. So, there you have it, 50 meters is 1/20th of a kilometer.
100000cm = 1km 50cm = 1km/1000000cm/1km 0.00005km = 50cm 50cm < 1km
fraction = 253m/1000m = 253/1000
1/40 is the answer
1/1000
3/4.
450/1000