The standard form of \(-\dfrac{48}{60}\) is
(a) \(\dfrac{48}{60}\)
(b) \(\dfrac{-60}{48}\)
(c) \(-\dfrac{4}{5}\)
(d) \(\dfrac{-4}{-5}\)
Simplify \(-\dfrac{48}{60}\): divide numerator and denominator by 12 → \(-\dfrac{4}{5}\).