Let us draw the given table of average length of shark and whales: From the above bar graph it is very clear that the lengths of two animals of ratio are: And
We wish to find the ratio of two numbers in the lowest term. Since we know to find the ratio of two numbers and , we will divide the first number by the second number.
We should always make sure that units should be same whenever it is possible.
Clearly we can see hear both measurements are in the same units miles.
Now to find the ratio of 16 fish to 20 fish, we will divide the first number 16 by the second number 20.
Therefore it will be, Therefore the ratio in lowest term is