Express 45 mm in cm, m and Km using decimal.

To convert 45 mm (millimeters) into centimeters, meters, and kilometers, we will use the following conversions:

Millimeters to Centimeters:

1 cm = 10 mm
To convert 45 mm to cm, divide by 10: 45 mm ÷ 10 = 4.5 cm
Millimeters to Meters:

1 m = 1000 mm
To convert 45 mm to meters, divide by 1000: 45 mm ÷ 1000 = 0.045 m
Millimeters to Kilometers:

1 km = 1,000,000 mm
To convert 45 mm to kilometers, divide by 1,000,000: 45 mm ÷ 1,000,000 = 0.000045 km
Final Answer:
45 mm = 4.5 cm
45 mm = 0.045 m
45 mm = 0.000045 km