Question

How to convert 3mm into cm​

Answer 1

3mm = 0.3 cm

Explanation:

1 cm = 10 mm

3mm = 3/10 = 0.3cm

Answer 2

0.3 cm

Explanation:

1 cm = 10 mm

1) Using proportion:

1 cm ----- 10 mm

x cm ----- 3 mm

x = 1 cm * 3 mm/10 mm = 0.3 cm

2) 3 mm * 1cm/10mm = 0.3 cm