Question

Answer 1

\(l,=-\dfrac{1}{4}+\dfrac{5}{8}-\dfrac{3}{8}\\ =-\dfrac{1}{4}-\dfrac{2}{8}\\ =-\dfrac{1}{4}-\dfrac{1}{4}=-\dfrac{1}{2}\\ m,=-\dfrac{5}{12}+\left(\dfrac{6+11}{11}\right)\\ =-\dfrac{5}{12}+\dfrac{17}{11}\\ =\dfrac{-5.11+17.12}{132}\\ =\dfrac{149}{132}\\ \)

 

Answer 2

m/=-5/12+(6/11+11/11)

=-5/12+17/11

=-55/132+204/132

=149/132

Answer 3

=(-2/8+5/8)+3/8

=3/8+3/8

=3/4