Question

if a sheep eats 1/6 of a bale a day how many sheep can be fed off of 1bale of hay?

Answer 1

To find out how many $\frac { 1 }{ 6 }$ there are in $1$ you should divide $1$ by  $\frac { 1 }{ 6 }$ so :
$\frac { 1 }{ \frac { 1 }{ 6 } } =1\cdot 6=6$ 
6 sheep can be fed with 1 bale hay

Answer 2

6 because 6/6 is a whole and each sheep only eats 1/6.