Q.3 Replace $$\square$$in each of the following by the correct number:
(a) $$\frac{2}{7} = \frac{8}{\square }$$
(b) $$\frac{5}{8} = \frac{10}{\square }$$
(c) $$\frac{3}{5}= \frac{\square }{20}$$
(d) $$\frac{45}{60} = \frac{15}{\square }$$
(e) $$\frac{18}{24}= \frac{\square }{4}$$
(a) $$\frac{2}{7} = \frac{8}{\square }$$
$$\rightarrow$$ $$\frac{2×4}{7×4} = \frac{8}{28}$$
(b) $$\frac{5}{8} = \frac{10}{\square }$$
$$\rightarrow$$ $$\frac{5×2}{8×2} = \frac{10}{16}$$
(c) $$\frac{3}{5}= \frac{\square }{20}$$
$$\rightarrow$$ $$\frac{3×4}{5×4} = \frac{12}{20}$$
(d) $$\frac{45}{60} = \frac{15}{\square }$$
$$\rightarrow$$ $$\frac{45÷3}{60÷3} = \frac{15}{20}$$
(e) $$\frac{18}{24}= \frac{\square }{4}$$
$$\rightarrow$$ $$\frac{18÷6}{24÷6} = \frac{3}{4}$$