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) \(\frac{18}{24}= \frac{\square }{4} \)
\(\rightarrow \) \(\frac{18÷6}{24÷6} = \frac{3}{4} \)