Question

\(\frac{-5}{11}.\frac{7}{15}-\frac{5}{11}.\frac{8}{15}+\frac{-6}{11}\)

Answer 1

\(\frac{-5}{11}.\frac{7}{15}-\frac{5}{11}.\frac{8}{15}+\frac{-6}{11}\)

=\(\frac{-5}{11}.\left(\frac{7}{15}+\frac{8}{15}\right)+\frac{-6}{11}\)

=\(\frac{-5}{11}.1+\frac{-6}{11}\)

=\(\frac{-11}{11}\)

=1