Question

Divide: {eq}displaystyle

frac{-78}{(-4)}

{/eq}

EXPERT ANSWER

{eq}begin{align*}

frac{-78}{(-4)}&=frac{78}4&&left [ because frac{-a}{-b}=frac ab right ]\[0.3 cm]

end{align*}

{/eq}

#### Division:

{eq}hspace{10mm}19.5\

hspace{10 mm}4overline{)78}\

hspace{14mm}underline{4}\

hspace{14mm}{38}\

hspace{14mm}underline{36}\

hspace{17mm}20\

hspace{17mm}underline{20}\

hspace{20mm}0

{/eq}

{eq}displaystyle therefore frac{-78}{(-4)}=19.5

{/eq}