There are 1000 mm in a meter.
1 meter = 1000 mm
x m = 254 mm
Cross multiply
x * 1000 mm = 1 m * 254 mm Divide by 1000
[tex]\dtext{x = } \dfrac{1*meter * 254 mm}{1000 mm}[/tex]
Notice the mm cancel out on the left. You are left with meters
x = 0.254 m
