Respuesta :
To simplify a fraction by dividing both top and bottom by the same factor.
So, pm/ pn equals to m/n .
If any variable or factor is present in both numerator and denominator. Then, these variables or factor are cancelled out each other.
In expression pm/pn , we observed that variable p is present in both numerator and denominator. So, variable p is cancelled out to each other.
Therefore, pm/pn = m/n
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