Question

-3/9.3/11-6/9+3/11

GẤP

Answer 1

\(-\dfrac{3}{9}\times\dfrac{3}{11}-\dfrac{6}{9}+\dfrac{3}{11}\\ =-\dfrac{1}{11}-\dfrac{6}{9}+\dfrac{3}{11}\\ =\dfrac{2}{11}-\dfrac{6}{9}\\ =\dfrac{2\times9-6\times11}{99}\\ =-\dfrac{16}{33}\)

Answer 2

=\(\dfrac{-1}{11}\)-\(\dfrac{6}{9}\)+\(\dfrac{3}{11}\)

=\(\dfrac{-9}{99}\)-\(\dfrac{66}{99}\)+\(\dfrac{3}{11}\)

=\(\dfrac{-25}{33}\)+\(\dfrac{3}{11}\)

=\(\dfrac{-25}{33}\)+\(\dfrac{9}{33}\)

=\(\dfrac{-16}{33}\)