Question: Show that (12+34)×83=(12)×(83)+(34)×(83). [Page No. 49]\left(\frac{1}{2} + \frac{3}{4}\right) \times \frac{8}{3} = \left(\frac{1}{2}\right) \times \left(\frac{8}{3}\right) + \left(\frac{3}{4}\right) \times \left(\frac{8}{3}\right). \text{ [Page No. 49]}(21+43)×38=(21)×(38)+(43)×(38). [Page No. 49] Answer: Verified LHS=12+34=24+34=54\quad\text{LHS}=\frac{1}{2}+\frac{3}{4}=\frac{2}{4}+\frac{3}{4}=\frac{5}{4}LHS=21+43=42+43=45 54×83=4012=103\frac{5}{4} \times \frac{8}{3} = \frac{40}{12} = \frac{10}{3}45×38=1240=310 RHS=(12)(83)+(34)(83)\text{RHS} = \left(\frac{1}{2}\right)\left(\frac{8}{3}\right) + \left(\frac{3}{4}\right)\left(\frac{8}{3}\right)RHS=(21)(38)+(43)(38) =86+2412=43+63=103= \frac{8}{6} + \frac{24}{12} = \frac{4}{3} + \frac{6}{3} = \frac{10}{3}=68+1224=34+36=310 LHS=RHS\text{LHS} = \text{RHS}LHS=RHS Hence, verified.