Question

Thực hiện phép tính -3/17+(2/3+3/17)

Answer 1

2/3

Answer 2

-3/17+(2/3+3/17)

=-3/17+2/3+3/17

=(-3/17+3/17)+2/3

=0+2/3

=2/3

Answer 3

-3/17+(2/3+3/17)=2/3

Answer 4

đáp án : 2/3 nha ☺️☺️

 

Answer 5

=\(\dfrac{-3}{17}+\dfrac{2}{3}+\dfrac{3}{17}\)

=(\(\dfrac{-3}{17}+\dfrac{3}{17}\))+\(\dfrac{2}{3}\)

=\(0+\dfrac{2}{3}\)

=\(\dfrac{2}{3}\)

Answer 6

\(=-\dfrac{3}{17}+\left(\dfrac{34}{51}+\dfrac{9}{51}\right)\)

\(=-\dfrac{3}{17}+\dfrac{43}{51}\)

\(=-\dfrac{9}{51}+\dfrac{43}{51}\)

\(=\dfrac{34}{51}=\dfrac{2}{3}\)

Answer 7

\(\dfrac{2}{3}\)