\(\dfrac{72\times75}{125\times108}\) = \(\dfrac{36\times2\times25\times3}{25\times5\times36\times3}\) = \(\dfrac{2}{5}\)

\(\dfrac{25}{64}\)

\(\dfrac{25}{64}\)

\(\dfrac{125}{130}=\dfrac{125:5}{320:5}=\dfrac{25}{64}\)

\(\dfrac{15}{125}=\dfrac{3}{25}\)

\(\dfrac{15}{125}=\dfrac{15:5}{125:5}=\dfrac{3}{25}\)

\(\frac{125}{2000}=\frac{125:125}{2000:125}=\frac{1}{16}\)

 rut gon bang : 

        1 phan  16

b: \(\dfrac{50}{125}=\dfrac{50:25}{125:25}=\dfrac{2}{5}\)

\(\dfrac{50}{125}=\dfrac{50:25}{125:25}=\dfrac{2}{5}\)

-2/3

4/7

-5/3

1/3

\(\dfrac{8}{-12}=\dfrac{-8}{12}=\dfrac{-2}{3}\)

\(\dfrac{400}{700}=\dfrac{4}{7}\)

\(\dfrac{-10}{6}=\dfrac{-5}{3}\)

\(\dfrac{-35}{-105}=\dfrac{35}{105}=\dfrac{1}{3}\)

Ta có: \(\frac{{ - 18}}{{76}} = \frac{{ - 18:2}}{{76:2}} = \frac{{ - 9}}{{38}}\)

\(\frac{{125}}{{ - 375}} = \frac{{125:( - 125)}}{{ - 375:( - 125)}} = \frac{{ - 1}}{3}\)

\(-\dfrac{18}{76}=\dfrac{-9}{38};\dfrac{125}{-375}=-\dfrac{1}{3}\)

3/5 và 25/2

 3/5 và 25/2

3/5

\(\frac{8}{5}\) cho mk nha bn

Ta có :

\(\frac{200}{125}=\frac{200:25}{125:25}=\frac{8}{5}\)

Vậy phân số :

200/125 rút gọn được 8/5

=8/5

k mk mk k lai