What is your purpose? How many numbers do you have on both numerator and denominator sides? How large would the numerator and the denominator be if you just made all the multiplications for both? Do you need absolutely accurate integer arithmetic, or would you be happy enough with a (presumably fairly close) floating-point approximation?

I am asking all these questions because the best strategy would probably depend on the answers to at least some of these questions. The "shape" of the data is especially important in such cases.

Update: fixed a typo ('numerator' instead of 'denominator' in one place).

In reply to Re: Fraction Cancelation by Laurent_R
in thread Fraction Cancelation by baxy77bax

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