Question

( 1/9 - 9/17 ) + 3/6 - [ (-8)/17 - 1/2 ] + 5/9

Answer 1

 

   \((\frac{1}{9}-\frac{9}{17})+\frac{3}{6}-(\frac{-8}{17}-\frac{1}{2})+\frac{5}{9}=\)

=\(\frac{1}{9}-\frac{9}{17}+\frac{1}{2}+\frac{8}{17}+\frac{1}{2}+\frac{5}{9}\)

= \((\frac{1}{9}+\frac{5}{9})+(\frac{-9}{17}+\frac{8}{17})+(\frac{1}{2}+\frac{1}{2})\)

=\(\frac{2}{3}-\frac{1}{17}+1\)

=\(\frac{34}{51}-\frac{3}{51}+\frac{51}{51}\)

=\(\frac{82}{51}\)

Answer 2

Gía trị biểu thức đó = \(\dfrac{82}{51}\)\(\approx\)1,61