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\(\dfrac{45}{63}=\dfrac{45:9}{63:9}=\dfrac{5}{7}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=\dfrac{3}{5}\\ =\dfrac{7}{9}\\ =\dfrac{4}{3}\\ =\dfrac{9}{7}\)
\(\dfrac{6}{10}=\dfrac{3}{5};\dfrac{70}{90}=\dfrac{7}{9};\dfrac{96}{72}=\dfrac{8}{9};\dfrac{45}{35}=\dfrac{9}{7}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Rút gọn:
\(\frac{35}{45}=\frac{35}{45}:\frac{5}{5}=\frac{7}{9}\)
HT
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{6}{10}=\dfrac{3}{5};\dfrac{70}{90}=\dfrac{7}{9};\)\(\dfrac{96}{72}=\dfrac{4}{3}\)\(\dfrac{45}{35}=\dfrac{9}{7}\)
\(\dfrac{6}{10}=\dfrac{3}{5};\dfrac{70}{90}=\dfrac{7}{9};\dfrac{96}{72}=\dfrac{4}{3};\dfrac{45}{35}=\dfrac{9}{7}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
`6/10=3/5`
`70/9=70/9`
`96/72=4/3`
`45/35=9/7`
`24/36=2/3`
`25/100=1/4`
![](https://rs.olm.vn/images/avt/0.png?1311)
Rút gọn các phân số sau :
\(\frac{18}{30}=\frac{18\div6}{30\div6}=\frac{3}{5}\)
\(\frac{64}{80}=\frac{64\div16}{80\div16}=\frac{4}{5}\)
\(\frac{36}{27}=\frac{36\div9}{27\div9}=\frac{4}{3}\)
\(\frac{45}{35}=\frac{45\div5}{35\div5}=\frac{9}{7}\)
45/35=9/5
\(\frac{45}{35}=\frac{45:5}{35:5}=\frac{9}{7}\)
Học tốt!