Verified Answer :

If Joe has 5 rabbits and 1/5 of those rabbits are white, then we just have to multiply... 

\(\frac{1}{5} * 5\)

5 can be transformed into a fraction by simply putting a 1 below it, so the problem looks like this:

\(\frac{1}{5} * \frac{5}{1}\)

Now we just multiply the numerators together and then multiply the denominators together. Numerators are the numbers on the top of fractions and denominators are on the bottoms.

\(\frac{1}{5} * \frac{5}{1} = \frac{5*1}{1*5}\)

Since any number times 1 equals the same number, the fraction now looks like this:

\(\frac{5}{5}\)

Any number divided by itself is 1, so we end up with 

\(\frac{5}{5} = 1\)

If Joe has 5 rabbits and 1/5 of them is white, then 1 of Joe's rabbits is white.
Hope that helped =)