Question 350284
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And we can't teach you an entire year of elementary school arithmetic in one post.  Pose an example problem, indicating what is giving you difficulty and showing what you have tried so far, and someone here will help you.  Otherwise, try Purple Math:


<a href="http://www.purplemath.com/modules/factnumb.htm">Factoring Numbers</a>


<a href="http://www.purplemath.com/modules/fraction.htm">Fractions</a>


<a href="http://www.purplemath.com/modules/lcm_gcf.htm">LCM and GCF</a>



John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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