Question

Mark (✓) against the correct answer
$\frac{55}{-66}$ in standard form is

(a) $\frac{5}{-6}$
(b) $\frac{-5}{6}$
(c) $\frac{-55}{66}$
(d) none of these

Answer 1

$$\begin{gathered} \begin{array}{l}\left(\mathrm{b}\right)\frac{-5}{6}\\ \begin{array}{l}\frac{55}{-66}=\frac{55\times (-1)}{-66\times (-1)}=\frac{-55}{66}\\ \end{array}\end{array} \\ \mathrm{H}.\mathrm{C}.\mathrm{F}.\mathrm{of}55\mathrm{and}66\mathrm{is}11. \\ \frac{-55÷11}{66÷11}=\frac{-5}{6} \\ \frac{-5}{6}\mathrm{is}\mathrm{the}\mathrm{standard}\mathrm{form}. \end{gathered}$$