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# Q. 4. Fill in the boxes: (a) $$\square - \frac{5}{8} = \frac{1}{4}$$ (b) $$\square - \frac{1}{5} = \frac{1}{2}$$ (c) $$\frac{1}{2} - \square = \frac{1}{6}$$

(a) $$\square - \frac{5}{8} = \frac{1}{4}$$
Or, $$\square = \frac{1}{4} + \frac{5}{8}$$
= $$\frac{1×2}{4×2} + \frac{5}{8}$$
= $$\frac{2}{8} + \frac{5}{8}$$ = $$\frac{7}{8} (b) \(\square - \frac{1}{5} = \frac{1}{2}$$
Or, $$\square = \frac{1}{2} + \frac{1}{5}$$
= $$\frac{1×5}{2×5} + \frac{1×2}{5×2}$$
= $$\frac{5}{10} + \frac{2}{10}$$ = $$\frac{7}{10}$$
(C) $$\frac{1}{2} - \square = \frac{1}{6}$$
Or, $$\frac{1}{2} - \frac{1}{6} = \square$$
Or, $$\square = \frac{1×3}{2×3} - \frac{1}{6}$$
Or, $$\square = \frac{3}{6} - \frac{1}{6}$$
Or, $$\square = \frac{2}{6}$$ = $$\frac{1}{3}$$