Express the ratio 20cm to15m in the form 1:n
To express the ratio 20cm to 15m in the form 1:n, we need to convert one of the measurements to the same unit as the other.
We can convert 20cm to meters by dividing it by 100 (since there are 100 centimeters in a meter):
20cm ÷ 100 = 0.2m
So the ratio becomes:
0.2m : 15m
To express this ratio in the form 1:n, we need to find a number that we can multiply both sides by to get a whole number on one side.
We can do this by dividing both sides by 0.2m, since:
(15m ÷ 0.2m) = 75
So the ratio 0.2m:15m is equivalent to:
1:75
Therefore, the ratio 20cm to 15m in the form 1:n is 1:75.