Question

-3/4.2/11+ -3/4.9/11+11/4

Answer 1

-3/4. 2/11 + -3/4.9/11+11/4

= -3/4.(2/11+ 9/11)+11/4

= 3/4.1+11/4

= 7/2

Answer 2

\(-\frac{3}{4}.\frac{2}{11}+\left(\frac{-3}{4}\right).\frac{9}{11}+\frac{11}{4}\) 

=\(\frac{-3}{4}.\left(\frac{2}{11}+\frac{9}{11}\right)+\frac{11}{4}\) 

=\(\frac{-3}{4}.1+\frac{11}{4}\) 

=\(\frac{-3}{4}+\frac{11}{4}\) = \(\frac{8}{11}\) 

Hok tốt !