Question

\(B=\frac{18}{37}-\frac{8}{2017}+\frac{19}{37}-1\frac{2009}{2017}+\frac{2017}{2018}\)

 

Answer 1

\(B=\frac{18}{37}-\frac{8}{2017}+\frac{19}{37}-1\frac{2009}{2017}+\frac{2017}{2018}\)

\(B=\left(\frac{18}{37}+\frac{19}{37}\right)-\left(\frac{8}{2017}+1\frac{2009}{2017}\right)+\frac{2017}{2018}\)

\(B=1-\left(\frac{8}{2017}+\frac{4026}{2017}\right)+\frac{2017}{2018}\)

\(B=1-2+\frac{2017}{2018}\)

\(B=-1+\frac{2017}{2018}=\frac{-2018}{2018}+\frac{2017}{2018}\)

\(B=\frac{-1}{2018}\)

CHÚC BN HỌC  TỐT!!!!!!

mk nha!!