Question

Divide:

(i) 16.46 ÷ 20
(ii) 403.8 ÷ 30
(iii) 19.2 ÷ 80
(iv) 156.8 ÷ 200
(v) 12.8 ÷ 500
(vi) 18.08 ÷ 400

Answer 1

(i) 16.46 ÷ 20 = $\frac{16.46}{20}=\frac{16.46\times 100}{20\times 100}=\frac{1646}{2\times 1000}=\frac{823}{1000}=0.823$

(ii) 403.8 ÷ 30 = $\frac{403.8}{30}=\frac{403.8\times 10}{30\times 10}=\frac{4038}{3\times 100}=\frac{1346}{100}=13.46$

(iii) 19.2 ÷ 80 = $\frac{19.2}{80}=\frac{19.2\times 10}{80\times 10}=\frac{192}{800}=\frac{192}{8\times 100}=\frac{24}{100}=0.24$

(iv) 156.8 ÷ 200 = $\frac{156.8}{200}=\frac{156.8\times 10}{200\times 10}=\frac{1568}{2000}=\frac{784}{1000}=0.784$

(v) 12.8 ÷ 500 = $\frac{12.8}{500}=\frac{12.8\times 10}{500\times 10}=\frac{128}{5000}=\frac{25.6}{1000}=0.0256$

(vi) 18.08 ÷ 400 = $\frac{18.08}{400}=\frac{18.08\times 100}{400\times 100}=\frac{1808}{40000}=\frac{452}{10000}=0.0452$