SAT Mathematics Practice Test 3

To solve the equation for w, multiply both sides of the equation by the reciprocal of $\frac{3}{5}$,which is $\frac{5}{3}$
This gives $\left(\frac{5}{3}\right)\cdot \frac{3}{5}\mathit{w}=\frac{4}{5}\cdot \left(\frac{5}{3}\right),$which simplifies to $\mathit{w}=\frac{20}{9}$
Choices A, B, and C are incorrect and may be the result of errors in arithmetic when simplifying the given equation.