one hundreth. 0.01 would be one tenth.
4 mm is 1/10 of 4 cm.
25.4 mm = 1 inch 2 mm = 0.07874 inch (rounded)
10 mm = 1.0 cm5 mm = 0.5 cm
1/10000
14 mm/3 cm = 14 mm/ 30 mm = 7/15
1 mm is 1000 micron. That means 1 micron is 0.0001 mm This is not correct. Yes, 1mm is 1000 micron. Watch those zeros. 1 micron is .001mm.
There is no intrinsic fraction for MM. If something is measured as a whole number of MM then it is an integer value, not a fraction.
.001mm or in a meter
.001mm
mm is not a number and so, in itself, it cannot have a fraction form.
Engineering measurement tolerances are the permissible limits of variation in measurements. Example a piece of steel 25mm square where it would be allowed to be +.001mm or -.001mm on this size. The plus or minus is the tolerance
7/2 mm
The fractional part of 1.5 mm is 0.5 mm. However, if you want 1.5 mm as a fraction of some other quantity then you need to specify that second quantity.
It is 5/2 mm as an improper fraction
A mm is 1/1000 of a meter
1 7/20 mm
3.5 mm as an improper fraction is 7/2 mm