Question

8/3 . 2/5 .3/8 .10 .19/92 trên 5/7 .5/11 + 5/7 .2/11-5/7 .11/11

lam ro chut nhe mk tck cho

Answer 1

8/3 . 2/5 . 3/8 . 10 .19/92 trên 5/7 . 5/11 +5/7 .2/11 - 5/7.11/11

=16/15 .15/4 .19/92 trên 5/7(5/11 +2/11 -11/11)

= .4 .19/92 trên 5/7.(-4/11)

=19/2 trên -20/77

Answer 2

\(\frac{\frac{8}{3}.\frac{2}{5}.\frac{3}{8}.10.\frac{19}{92}}{\frac{5}{7}.\frac{5}{11}+\frac{5}{7}.\frac{2}{11}-\frac{5}{7}.\frac{11}{11}}\)

=\(\frac{\frac{2}{5}.10.\frac{19}{92}}{\frac{5}{7}.\left(\frac{5}{11}+\frac{2}{11}-1\right)}\)

=\(\frac{\frac{19}{23}}{\frac{-20}{77}}\)

=\(\frac{19}{23}.\frac{-77}{20}\)

=\(\frac{-1463}{460}\)