Question

Express each of the following per cents as ratios in the simplest forms:
(i) 2.5%
(ii) 0.4%
(iii) $13\frac{3}{4}\%$

Answer 1

(i) 2.5% = 2.5/100 = 25/1000 = 5/200 = 1/40
(ii) 0.4% = 0.4/100 = 4/1000 = 1/250
(iii) $13\frac{3}{4}=\frac{55}{4\times 100}=\frac{11}{80}$