* Know the conversion: 1 meter (m) is equal to 100 centimeters (cm).

* Set up a proportion: We can set up a proportion:

* 1m / 100cm = x / 19cm

* Where 'x' represents the fraction of a meter that 19cm is.

* Solve for x:

* Cross-multiply: 1m * 19cm = 100cm * x

* Simplify: 19cm = 100x

* Divide both sides by 100: x = 19/100

Therefore, 19cm is equal to 19/100 of a meter.