Chuyển PS 17/5 thành hỗn số
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2\(\frac{8}{1000}\)=\(\frac{2x1000+8}{1000}\)=\(\frac{2008}{1000}\)
2\(\frac{8}{1000}\) = \(\frac{2.1000+8}{1000}\) = \(\frac{2008}{1000}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(3\dfrac{5}{10}=\dfrac{35}{10}=\dfrac{7}{2}=3,5\)
\(12\dfrac{5}{100}=\dfrac{241}{20}=12,05\)
\(17\dfrac{23}{100}=\dfrac{1723}{100}=17,23\)
\(10\dfrac{7}{10}=\dfrac{107}{10}=10,7\)
3\(\dfrac{5}{10}\)=3,5;12\(\dfrac{5}{100}\)=12,05;17\(\dfrac{23}{100}\)=17,23;10\(\dfrac{7}{10}\)=10,7.
![](https://rs.olm.vn/images/avt/0.png?1311)
\(3\frac{127}{1000}=\frac{3.1000+127}{1000}=\frac{3127}{1000}\)
\(3\frac{127}{1000}=\frac{3\times1000+127}{1000}=\frac{3127}{1000}.\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 1:
a) \(2\)\(\dfrac{2}{3}\)\(=\dfrac{8}{3}\)
b) \(1\)\(\dfrac{5}{7}=\dfrac{12}{7}\)
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2 và 17/1000=1000x2+17/1000
2017/1000
vậy 2 và 17/1000=2017/1000
\(2\frac{17}{1000}=2+\frac{17}{1000}=\frac{2000}{1000}+\frac{17}{1000}=\frac{2017}{1000}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
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\(3\frac{1}{2}=\frac{3.2+1}{2}=\frac{7}{2}\)
\(13\frac{2}{3}=\frac{13.3+2}{3}=\frac{41}{3}\)
\(5\frac{7}{8}=\frac{5.8+7}{8}=\frac{47}{8}\)
\(17\frac{1}{4}=\frac{17.4+1}{4}=\frac{69}{4}\)
\(4\frac{2}{9}=\frac{4.9+2}{9}=\frac{38}{9}\)
\(21\frac{5}{9}=\frac{21.9+5}{9}=\frac{194}{9}\)
\(10\frac{5}{8}=\frac{10.8+5}{8}=\frac{85}{8}\)
\(14\frac{1}{5}=\frac{14.5+1}{5}=\frac{71}{5}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Đáp án :
\(\frac{17}{5}=3\frac{2}{5}\)
3 và 2/5 nha bạn