You can put this solution on YOUR website! if what you are asking is:
-63 divided by 21 divided by 5
it may be easier if you set it up like this:
(-63/21) / (5)
then look at it as two fractions:
-63/21 divided by 5/1
(since any whole number may be written as having denominator 1)
to divide fractions, invert (flip upside down) the second fraction and multiply: x
so X=
all that's left is simplifying, as needed