How to shorten this fraction?
$R_1+R_2$ divided by $\frac1{R_1} + \frac1{R_2}$
The answer is $R_1R_2$. I just don't know how to get there.
How to shorten this fraction?
$R_1+R_2$ divided by $\frac1{R_1} + \frac1{R_2}$
The answer is $R_1R_2$. I just don't know how to get there.