Left- 1cm = 1/3mm

Right- 1cm = 1/6mm
Above are two different models of a microchip.
If the model of the microchip on the left is measures 5cm tall, how tall is the model of the microchip on the right?

Model on the left:

5cm = 5 * 1/3mm = 5/3 mm = 1 2/3 mm

Therefore, the model on the right is 1 2/3 mm tall.