Question

\(\frac{-11}{23}.\frac{10}{-13}+\frac{11}{-13}.\frac{-3}{23}-\left(\frac{-12}{23}\right)\)

Answer 1

110/299+33/299+12/23

143/299+12/23

1

Answer 2

=\(\frac{-11}{23}\)\(\times\)\(\frac{10}{-13}\)\(+\)\(\frac{11}{-13}\)\(\times\)\(\frac{-3}{23}\)\(+\)\(\frac{12}{23}\)

=\(\frac{110}{299}\)\(+\)\(\frac{33}{299}\)\(+\)\(\frac{12}{23}\)

=\(\frac{143}{299}\)\(+\)\(\frac{12}{23}\)

=  1

Answer 3

=1

hoc tot

Answer 4

\(=\frac{-11}{23}.\frac{10}{-13}+\frac{11}{-13}.\frac{-3}{23}+\frac{12}{23}\)

\(=\frac{110}{299}+\frac{33}{299}+\frac{12}{23}\)

\(=\frac{143}{299}+\frac{12}{23}=1\)