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\(\frac{3}{5}=\frac{3\times8}{5\times8}=\frac{24}{40}\)
\(\frac{3}{8}=\frac{3\times5}{8\times5}=\frac{15}{40}\)
\(\frac{3}{10}=\frac{3\times4}{10\times4}=\frac{12}{40}\)
\(\frac{3}{2}=\frac{3\times20}{2\times20}=\frac{60}{40}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{3}{5}=\frac{24}{40};\frac{3}{8}=\frac{15}{40};\frac{3}{10}=\frac{12}{40};\frac{3}{2}=\frac{60}{40}\)
\(\frac{3}{5}=\frac{3\times8}{5\times8}=\frac{24}{40}\)
\(\frac{3}{8}=\frac{3\times5}{8\times5}=\frac{15}{40}\)
\(\frac{3}{10}=\frac{3\times4}{10\times4}=\frac{12}{40}\)
\(\frac{3}{2}=\frac{3\times20}{2\times20}=\frac{60}{40}\)
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Rút gọn : 4/12 = 1/3
3/9 = 1/3
Quy đồng :
1/3 = 2/6
1/2 = 3/6
Kết quả : 2/6 ; 2/6 ; 3/6
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MSC:60
\(\dfrac{1}{2}=\dfrac{1\times30}{2\times30}=\dfrac{30}{60}\); \(\dfrac{2}{3}=\dfrac{2\times20}{3\times20}=\dfrac{40}{60}\); \(\dfrac{3}{4}=\dfrac{3\times15}{4\times15}=\dfrac{45}{60}\); \(\dfrac{17}{10}=\dfrac{17\times6}{10\times6}=\dfrac{102}{60}\)
\(\dfrac{1}{2}=\dfrac{30}{60}\)
\(\dfrac{2}{3}=\dfrac{40}{60}\)
\(\dfrac{3}{4}=\dfrac{45}{60}\)
\(\dfrac{17}{10}=\dfrac{102}{60}\)
`1/4=(1xx5)/(4xx5)=5/20`
`2/5=(2xx4)/(5xx4)=8/20`
`3/2=(3xx10)/(2xx10)=30/20`