Question

\(\frac{-5}{9}+\frac{3}{5}+\frac{-3}{9}+\frac{-2}{5}\)

các bn giúp m trong tối nay nha ^_^

Answer 1

\(=\left(\frac{-5}{9}+\frac{-3}{9}\right)+\left(\frac{3}{5}+\frac{-2}{5}\right)\)

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

\(=\frac{-40}{45}+\frac{9}{45}\)

\(=\frac{-31}{45}\)

T I C K nha

Answer 2

NHÓM NHƯ SAU:

-5/8	-3/9
3/5	-2/5.

Còn tính thế nào là do bn tự làm

Answer 3

\(\frac{-5}{9}+\frac{3}{5}+\frac{-3}{9}+\frac{-2}{5}=\frac{-8}{9}+\frac{1}{5}=-\frac{31}{45}\)

Answer 4

-5/9+3/5+-3/9+-2/5

=\(\left(-\frac{5}{9}+-\frac{3}{9}\right)+\left(\frac{3}{5}+-\frac{2}{5}\right)\)

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

\(=-\frac{31}{45}\)

Answer 5

\(\frac{-5}{9}+\frac{3}{5}+\frac{-3}{9}+\frac{-2}{5}\)

\(=\left(\frac{-5}{9}+\frac{-3}{9}\right)+\left(\frac{3}{5}+\frac{-2}{5}\right)\)

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

\(=\frac{-40}{45}+\frac{9}{45}\)

\(=\frac{-36}{45}=\frac{-4}{9}\)

Answer 6

Ta có:

-5/9=-5.5/9.5=-25/45

3/5=3.9/5.9=27/45

-3/9=-3.5/9.5=-15/45

-2/5=-2.9/5.9=-18.45

=>-5/9+3/5+-3/9+-2/5

<=>-25/45+27/45+-15/45+-18/45

<=>-31/45

Hơi khó nhìn bạn thông cảm

Answer 7

\(\frac{-31}{45}\)