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matrenka [14]
3 years ago
10

Which expression is equivalent to 1/8x- 1/2?

Mathematics
1 answer:
pychu [463]3 years ago
6 0
This is done by factoring.  1/8 is smaller than 1/2, so we can factor a 1/8 out of 1/2.  This is what that looks like: \frac{ \frac{1}{2} }{ \frac{1}{8} }, because factoring after all is a form of division.  When we divide a fraction by a fraction, we bring the lower fraction up and flip it to multiply, giving us this: \frac{1}{2} * \frac{8}{1}.  This of course reduces to 4.  So when we factor out 1/8, what we will have then is \frac{1}{8} (x-4), choice D from above.
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