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Thứ tự sắp xếp là : \(\frac{1}{2};\frac{2}{3};\frac{3}{4};\frac{4}{5};\frac{5}{6};\frac{6}{7};\frac{7}{8};\frac{8}{9};\frac{9}{10}\)
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3/5=36/60;3/4=45/60;7/12=35/60
35/60<36/60<45/60 nên 7/12<3/5<3/4
MC:60
=> 3/5=36/60;3/4=45/60;7/12=35/60
Sắp xếp 35/60<36/60<45/60 Vậy 7/12<3/5<3/4
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Dòng đầu tiên, ta có:
\(\frac{9}{7};\frac{7}{8};\frac{6}{7};\frac{9}{5}\Rightarrow\frac{9}{5};\frac{9}{7};\frac{7}{8};\frac{6}{7}\)
Dòng thứ hai ta cũng có:
\(\frac{4}{3};\frac{1}{2};\frac{6}{5};\frac{5}{12}\Rightarrow\frac{5}{12};\frac{1}{2};\frac{6}{5};\frac{4}{3}\)
Bạn nhé
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Các phân số được xếp theo thứ tự tăng dần: \(\dfrac{1}{4};\dfrac{1}{3};\dfrac{2}{5};\dfrac{1}{2}\)
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có `5/4=15/12`
`1/4=3/12`
`2/3=8/12`
`3/4=9/12`
vì `3<8<9<15`
`=>3/12<8/12<9/12<15/12`
`=>1/4<2/3<3/4<5/4`
sắp xếp `1/4;2/3;3/4;5/4`
a) Ta có:
\(\dfrac{5}{4}=\dfrac{5\times3}{4\times3}=\dfrac{15}{12}\)
\(\dfrac{1}{4}=\dfrac{1\times3}{4\times3}=\dfrac{3}{12}\)
\(\dfrac{2}{3}=\dfrac{2\times4}{3\times4}=\dfrac{8}{12}\)
\(\dfrac{3}{4}=\dfrac{3\times3}{4\times3}=\dfrac{9}{12}\)
Vì \(\dfrac{3}{12}< \dfrac{8}{12}< \dfrac{9}{12}< \dfrac{15}{12}\) nên \(\dfrac{1}{4}< \dfrac{2}{3}< \dfrac{3}{4}< \dfrac{5}{4}\)
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mình nghĩ là : 1/2 < 2/3 < 3/4 < 4/5 < 5/6 < 6/7 < 7/8 < 8/9 < 9/10
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\(\frac{1}{2}\)\(;\frac{2}{3}\)\(;\frac{3}{4}\)\(;\frac{5}{6}\)
MSC : 12 nha bạn
^ HT ^
1/2<2/3<3/4<4/5
1/2 ;2/3;3/4;4/5