Q.4 A rectangular sheet of paper is \(12\frac{1}{2} \) cm long and \(10\frac{2}{3} \)cm wide. Find its perimeter.

Length of sheet = \(12\frac{1}{2} = \frac{25}{2} \)
Breath of sheet =\(10\frac{2}{3} = \frac{32}{3} \)
Perimeter = 2× (length +breath)
$$= 2×[\frac{25}{2}+\frac{32}{3}] $$
= \(2× \frac{75+64}{6}= 2 ×\frac{139}{6} = \frac{139}{3}= 43\frac{1}{3} \)