Question

tính bằng cách thuận tiện nhất.                                                                                    13/17 : 8/3 - 5/17 : 8/3 =

Answer 1

(13/17-5/17):8/3

=8/17:8/3

=3/17

 

Answer 2

=\(\dfrac{13}{17}:\dfrac{8}{3}-\dfrac{5}{17}:\dfrac{8}{3}\)

=\(\left(\dfrac{13}{17}-\dfrac{5}{17}\right):\dfrac{8}{3}\)

=\(\dfrac{8}{17}:\dfrac{8}{3}\)

\(=\dfrac{3}{17}\)

Answer 3

\(\dfrac{13}{17}:\dfrac{8}{3}-\dfrac{5}{17}:\dfrac{8}{3}=\dfrac{13}{17}.\dfrac{3}{8}-\dfrac{5}{17}.\dfrac{3}{8}=\dfrac{3}{8}\left(\dfrac{13}{17}-\dfrac{5}{17}\right)=\dfrac{3}{8}.\dfrac{8}{17}=\dfrac{3}{17}\)

Answer 4

\(\dfrac{13}{17}:\dfrac{8}{3}-\dfrac{5}{17}:\dfrac{8}{3}=\left(\dfrac{13}{17}-\dfrac{5}{17}\right):\dfrac{8}{3}=\dfrac{8}{17}:\dfrac{8}{3}=\dfrac{8}{17}.\dfrac{3}{8}=\dfrac{1.3}{17.1}=\dfrac{3}{17}\)

Answer 5

3/17