Question

Express rational number as a fraction in simplest form -- (a) -129.6

(b) 602/31

Answer 1

$$\begin{gathered} \left(\mathrm{a}\right).129.6=\frac{1296}{10} \\ \mathrm{HCF}\mathrm{of}1296\mathrm{and}10=2 \\ \mathrm{so}, \\ \frac{1296}{10}=\frac{1296÷2}{10÷2}=\frac{648}{5}\left[\mathrm{simplest}\mathrm{form}\right] \\ \left(\mathrm{b}\right). \\ \frac{602}{31} \\ \mathrm{HCF}\mathrm{of}602\mathrm{and}31=1 \\ \mathrm{so}, \\ \frac{602}{31}=\frac{602÷1}{31÷1}=\frac{602}{31}\left[\mathrm{simplest}\mathrm{form}\right] \end{gathered}$$