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Let's look at a number...
8...
What number can we
multiply to
8
to get
1
(the
multiplicative identity)
as the answer?
Wow! That's a
really weird problem. Can you think of any
integers that would work? Nope. So...
It must be a fraction! Remember that we want
1
for the answer... and
1
in fraction language with
8's
is
So, the multiplicative
inverse of
8
is
1/8!
Let's go the other
way...
What number can we
multiply to
1/8
to get
1
as the answer?
Remember
this!
So, the multiplicative
inverse of
1/8
is 8!
Continued on the
next
page
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