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1.
a) 10=\(\dfrac{40}{4}\)
b) 25= \(\dfrac{100}{4}\)
2.
a) 11=\(\dfrac{11}{1}\)
b) 276=\(\dfrac{276}{1}\)
c) 158=\(\dfrac{158}{1}\)
3.
\(\dfrac{1}{1};\dfrac{2}{2};\dfrac{3}{3};\dfrac{4}{4};\dfrac{5}{5}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a)
\(3:8=\dfrac{3}{8}\)
\(8:9=\dfrac{8}{9}\)
\(4:7=\dfrac{4}{7}\)
\(12:5=\dfrac{12}{5}\)
b)
\(7=\dfrac{7}{1}\)
\(9=\dfrac{9}{1}\)
\(21=\dfrac{21}{1}\)
\(40=\dfrac{40}{1}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: 5 = 5/1
10 = 10/1
117 = 007/1
2015 = 2015/1
2016 = 2016/1
Mn nhớ kb với tui nha
5= \(\frac{5}{1}\); 10= \(\frac{10}{1}\); 117= \(\frac{117}{1}\); 2015= \(\frac{2015}{1}\); 2016= \(\frac{2016}{1}\).
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{17}{50}=\frac{34}{100}=0,34\)
\(\frac{17}{50}=\frac{340}{1000}=0,340\)
........
* Bạn làm tương tự nhé *
Hc tốt
\(\dfrac{25}{1}\)
25=25/1