# In a town zoo, 3/28 of the animals are birds. Of the birds, 4/15 are birds of prey. What fraction of the animals at the zoo are birds of prey?

Dec 3, 2016

I got : $\frac{1}{35}$

#### Explanation:

We can consider that the birds of prey will be:

$\frac{\cancel{3}}{28} \cdot \frac{4}{\cancel{15}} ^ 5 =$

=cancel(4)/cancel(28)^7*1/5=1/(7×5)=1/35

Try with numbers, say, $700$ animals in total:

So that 700×1/35=20