Convert the given fractional numbers to per cents.
(a) $\frac{1}{8}$ (b) $\frac{5}{4}$ (c) $\frac{3}{40}$ (d) $\frac{2}{7}$

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Comparing Quantities

Question

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Convert the given fractional numbers to per cents.
(a) $\frac{1}{8}$ (b) $\frac{5}{4}$ (c) $\frac{3}{40}$ (d) $\frac{2}{7}$

Solution

(a)

$\frac{1}{8} = \frac{1}{8} \times \frac{100}{100} = \frac{1}{8} \times 100 % = 12.5 %$

(b) $\frac{5}{4}$

$\frac{5}{4} = \frac{5}{4} \times \frac{100}{100} = \frac{500}{4} % = 125 %$

(c) $\frac{3}{40}$

$\frac{3}{40} = \frac{3}{40} \times \frac{100}{100} = \frac{300}{40} % = 7.5 %$

(d) $\frac{2}{7}$

$\frac{2}{7} = \frac{2}{7} \times \frac{100}{100} = \frac{200}{7} % = 28 \frac{4}{7} %$

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In a city, 30% are females, 40% are males and remaining are children. What per cent are children?