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Quick question about balanced equations

If you have Zero on one side of the equation, and a fraction on the other, can you still "multiply both sides by the denominator"?
Yes you can. Consider the equation ab=0\displaystyle \frac{a}{b}=0 where a and b are real numbers and b is non zero. Then clearly we have the denominator is some real number so the the lhs is zero if and only if the number a is zero. This is what you get when you times by b.
(edited 8 years ago)
Original post by poorform
Yes you can. Consider the equation ab=0\displaystyle \frac{a}{b}=0 where a and b are real numbers and b is non zero. Then clearly we have the denominator is some real number so the the lhs is zero if and only if the number a is zero. This is what you get when you times by b.


That makes sense, thank you.

I was just getting a bit confused about it with complicated quadratic fractions and all.

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