If an expression is divided by a fraction, the expression can be simplified by multiplying the numerator by the reciprocal of the fraction in the denominator. 3/54=3⋅45=3⋅45 \left.3\middle/\dfrac 5 4\right. =3\cdot \dfrac{4}{5}=\dfrac{3\cdot 4} 5 3/45=3⋅54=53⋅4