The given equation is \( 13x + 16y = 4 \). This equation does not contain any fractions, so there are no fractions to clear.
If Rashonda is looking to eliminate any potential fractions from equations that might look similar but have fractions involved, she would generally multiply by the denominator(s) of any fractions present in the equation. However, in this case, since the equation is already free of fractions, no multiplication is needed.
So, to answer your question: Rashonda does not need to multiply the equation by any number as there are no fractions to clear.