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\(\frac{27}{31}=\frac{2727}{3131}=\frac{272727}{313131}\)
\(\frac{27}{31}=\frac{27.101}{31.101}=\frac{27.10101}{31.10101}\)
\(\frac{27}{31}=\frac{27}{31}=\frac{27}{31}\)
\(\Rightarrow\frac{27}{31}=\frac{2727}{3131}=\frac{272727}{313131}\)
\(\frac{27}{31}=\frac{2727}{3131}=\frac{272727}{313131}\)
\(\frac{27}{31}=\frac{27\cdot101}{31\cdot101}=\frac{27\cdot10101}{31\cdot10101}\)
\(\Rightarrow\frac{27}{31}=\frac{2727}{3131}=\frac{272727}{313131}\)
`#3107.101107`
`a)`
Ta có:
\(\dfrac{2727}{3131}=\dfrac{2727\div27}{3131\div31}=\dfrac{27}{31}\)
Vì \(\dfrac{27}{31}=\dfrac{27}{31}\)
\(\Rightarrow\dfrac{27}{31}=\dfrac{2727}{3131}\)
`b)`
Ta có:
\(\dfrac{11}{31}=1-\dfrac{20}{31}=1-\dfrac{200}{310}\)
\(\dfrac{111}{311}=1-\dfrac{200}{311}\)
Vì \(\dfrac{200}{310}>\dfrac{200}{311}\)
\(\Rightarrow1-\dfrac{200}{310}< 1-\dfrac{200}{311}\)
\(\Rightarrow\dfrac{11}{31}< \dfrac{111}{311}.\)
ta có:19/20<20/20 và 20/20<20/21
ta có:1-17/21=21/21-17/21=4/21
nên 4/21>4/27
1-23/27=27/27=4/27
ta có:31/29-1=31/29-29/29=2/29
nên 31/29>45/43
45/43-1=43/43-45/43=2/43
nhớ k mình nha
\(a,\dfrac{2727}{3131}=\dfrac{2727:101}{3131:101}=\dfrac{27}{31}\\ Vậy:\dfrac{27}{31}=\dfrac{2727}{3131}\)
\(\dfrac{2727}{3131}=\dfrac{27.101}{31.101}=\dfrac{27}{31}\)
⇒\(\dfrac{27}{31}=\dfrac{2727}{3131}\)
\(\dfrac{27}{31}=\dfrac{27\times101}{31\times101}=\dfrac{2727}{3131}\)
Ta có :
31/30 > 30/30
=> 31/30 > 1 ( 1 )
22/27 < 27/27
=> 22/27 < 1 ( 2 )
Từ ( 1 ) và ( 2 )
=> 22/27 < 1 < 31/30
=> 22/27 < 31/30
TK mk nha !!!
a/13/27 và 27/41
\(\frac{13}{27}+\frac{14}{27}=1;\frac{27}{41}+\frac{14}{41}=1\)
Vì\(\frac{14}{27}< \frac{14}{41}\Rightarrow\frac{13}{27}< \frac{27}{41}\)
Phần b tương tự nha, thấy đúng thì tk cho mk nha, thanks ^_^
\(\frac{3}{5}\)và \(\frac{4}{9}\)
Vì \(\frac{3}{5}>\frac{3}{6}=\frac{1}{2};\frac{1}{2}=\frac{4}{8}>\frac{4}{9}\)nên \(\frac{3}{5}>\frac{4}{9}\)
\(\frac{19}{60}\)và \(\frac{31}{90}\)
Vì \(\frac{19}{60}< \frac{19}{57}=\frac{1}{3};\frac{1}{3}=\frac{31}{93}< \frac{31}{90}\)nên \(\frac{19}{60}< \frac{31}{90}\)
# Học tốt
\(\frac{27}{31}=\frac{27x10101}{31x10101}=\frac{272727}{313131}\)
27/31 = 272727/313131