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Which numbers should be filled in the parentheses to make the equation correct?  $\frac14=\frac{(\textasciitilde\textasciitilde\textasciitilde\textasciitilde)}{16}=\frac8{(\textasciitilde\textasciitilde\textasciitilde\textasciitilde)}$ 
Overseas Competition->Knowledge Point->Calculation Modules->Fractions
When the denominator and numerator are multiplied by the same number, the value of the fraction remains equal. 