Question

Convert the given fractional numbers to per cents. 

1. \(\frac{1}{8 }\)
2.  \(\frac{5}{4 }\) 
3.  \(\frac{3}{40}\) 
4.  \(\frac{2}{7}\)

Answer 1

(a) \(\frac{1}{8}=\frac{1}{8}\times\frac{100}{100}\)

\(\frac{1}{8}\times100\) \(\%\)

= \(12.5\%\)

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(b) \(\frac{5}{4}=\frac{5}{4}\times\frac{100}{100}\)

\(= \frac{500}{4}\%\)

= \(125\%\)

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(c) \(\frac{3}{40}= \frac{3}{40}\times \frac{100}{100}\)

= \(\frac{300}{40}\%\)

=\(7.5\%\)

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(d) \(\frac{2}{7}=\frac{2}{7}\times \frac{100}{100}\)

= \(\frac{200}{7}\%\)

= \(28\frac{4}{7}\%\)