Compare the fractions by making the denominators of all the fractions same.Book read by Balakrishnan is,\\\\(\\dfrac{1}{2} = \\dfrac{1}{2} \ imes \\dfrac{3}{3}\\\\)\\\\( = \\dfrac{3}{6}\\\\)Book read by Subhalakshmi is,\\\\(\\dfrac{2}{3} = \\dfrac{2}{3} \ imes \\dfrac{2}{2}\\\\)\\\\( = \\dfrac{4}{6}\\\\)Book read by Angela is \\\\(\\dfrac{5}{6}\\\\).The order of reading the book can be arranged as,\\\\(\\dfrac{3}{6} < \\dfrac{4}{6} < \\dfrac{5}{6}\\\\)Therefore, the order from the one who read the book most of the least is,’Angela, Subhalakshmi, Balakrishnan.