Question

what is the ratio of 18mm to 3cm

Answer 1

3cm = 30mm

30:18 = 5:3

So, the ratio is 5:3

Answer 2

Answer:9:15

Step-by-step explanation:

1cm = 10mm

So

3cm = 30mm

So the ratio will be

18mm:30mm

=9:15

I hope its the right answer mate