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điền dấu ><=
54,01...54\(\frac{1}{10}\)
3,41...3\(\frac{1}{4}\)
4\(\frac{1}{25}\)...4,25
9\(\frac{4}{5}\)...9,8
Câu 1
=
Câu 2
>
câu 3
<
câu 4
=
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
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\(9\frac{1}{4}+6\frac{2}{7}+7\frac{3}{5}+8\frac{2}{3}+\frac{2}{5}+\frac{1}{3}+\frac{5}{7}+\frac{3}{4}\)
\(=\left(9\frac{1}{4}+\frac{3}{4}\right)+\left(6\frac{2}{7}+\frac{5}{7}\right)+\left(7\frac{3}{5}+\frac{2}{5}\right)+\left(8\frac{2}{3}+\frac{1}{3}\right)\)
\(=\left(\frac{37}{4}+\frac{3}{4}\right)+\left(\frac{44}{7}+\frac{5}{7}\right)+\left(\frac{38}{5}+\frac{2}{5}\right)+\left(\frac{26}{3}+\frac{1}{3}\right)\)
\(=\frac{40}{4}+\frac{49}{7}+\frac{40}{5}+\frac{40}{5}+\frac{27}{3}\)
\(=10+7+8+8+9\)
\(=42\)
**** nha Bùi Xuân Lê
![](https://rs.olm.vn/images/avt/0.png?1311)
bài2 \(x\times\dfrac{15}{16}-x\times\dfrac{4}{16}=2\)
\(x\times\dfrac{11}{16}=2\)
\(x=2:\dfrac{11}{16}\)
\(x=\dfrac{32}{11}\)
Bài 1 :
\(\dfrac{x}{16}\times\left(2017-1\right)=2\)
\(\dfrac{x}{16}\times2016=2\)
\(\dfrac{x}{16}=\dfrac{2}{2016}\)
\(x=\dfrac{2}{2016}\times16\)
\(x=\dfrac{1}{63}\)
3,14 < 3 1/4
Vì 3 1/4 = 13/4 = 3,25
Vậy 3,25 > 3,14
=> 3,14 < 3 1/4
4 1/25 < 4,25
Vì 4 1/25 = 101 /25 = 4,04
Vậy 4,04 < 4,25
=> 4 1/25 < 4,25
9 4/5 = 9,8
Vì 9 4/5 = 49/5 = 9,8
Vậy 9,8 = 9,8
=> 9 4/5 = 9,8
Hok tốt
3,14 < 3 1/4
4 1/25 < 4,25
9 4/5 = 9,8