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\(a.\)
\(0.3=\dfrac{3}{10}\)
\(0.72=\dfrac{72}{100}\)
\(1.5=\dfrac{15}{10}\)
\(9.347=\dfrac{9347}{1000}\)
\(b.\)
\(\dfrac{1}{2}=\dfrac{5}{10}\)
\(\dfrac{2}{5}=\dfrac{4}{10}\)
\(\dfrac{3}{4}=\dfrac{75}{100}\)
\(\dfrac{6}{25}=\dfrac{24}{100}\)
a) \(0,3=\dfrac{3}{10}\)
\(0,72=\dfrac{72}{100}\)
\(1,5=\dfrac{15}{10}\)
\(9,347=\dfrac{9347}{1000}\)
b) \(\dfrac{1}{2}=\dfrac{5}{10}\)
\(\dfrac{2}{5}=\dfrac{4}{10}\)
\(\dfrac{3}{4}=\dfrac{75}{100}\)
\(\dfrac{6}{25}=\dfrac{24}{100}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(0,7=\frac{7}{10}\)
\(0,94=\frac{94}{100}\)
\(2,7=\frac{27}{100}\)
\(4,567=\frac{4567}{1000}\)
b) \(\frac{1}{4}=\frac{25}{100}\)
\(\frac{7}{5}=\frac{14}{10}\)
\(\frac{16}{25}=\frac{64}{100}\)
\(\frac{3}{2}=\frac{15}{10}\)
\(0,7=\frac{7}{10}\)
\(0,94=\frac{94}{100}\)
\(2,7=\frac{27}{10}\)
\(4,567=\frac{4567}{1000}\)
b) \(\frac{1}{4}=\frac{25}{100}\)
\(\frac{7}{5}=\frac{14}{10}\)
\(\frac{16}{25}=\frac{64}{100}\)
\(\frac{3}{2}=\frac{15}{10}\)
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^^
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a, 0,5 = \(\dfrac{5}{10}\); 0,71 = \(\dfrac{71}{100}\); 1,348 = \(\dfrac{1348}{1000}\); 49,16 = \(\dfrac{4916}{100}\)
b, \(\dfrac{3}{5}\) = \(\dfrac{3\times2}{5\times2}\) = \(\dfrac{6}{10}\); \(\dfrac{7}{25}\) = \(\dfrac{7\times4}{25\times4}\) = \(\dfrac{28}{100}\); \(\dfrac{6}{125}\) = \(\dfrac{6\times8}{125\times8}\)= \(\dfrac{48}{1000}\)
\(\dfrac{7}{4}\) = \(\dfrac{7\times25}{4\times25}\) = \(\dfrac{175}{100}\)
a) \(\frac{3}{10},\frac{72}{100},\frac{15}{10},\frac{9347}{1000}\)
b) 0,5
0,4
0,75
0,24
viết các số sau dưới dạng phân số thập phân
a)0,3=3/10 0,72=72/100 1,5=15/10 9,347=9347/1000
b)1/2=0,5 2/5=0,4 3/4=0,75 6/25=0,24