Question

For every 13 birds born there are 2 animals born. There were 44 fewer birds born last month, so how many animals were born?

Answer 1

For every thirteen birds born there are 2 animals. 
so
13:2 is your ratio

There are fewer than 44 birds, so x > 44
43/13 = 3.3, or 3 birds for every 2 animals
2 x 3 = 6

There are 6 animals that were born

hope this helps