Question

what is the ratio of 1 mm to 1 km

Answer 1

HEY MATE HERE IS YOUR ANSWER.......
The ratio of 1mm to 1km is _________
1mm = 0.00000001km
Hope It. Helps

Answer 2

1 cm = 10 mm

1 m = 100 cm

1 km = 1000 m

1 km = 1000×100×10

= 1000000 mm

ratio = 1:1000000