232323-232323=?
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
232323 . 474747 - 4747 . 232323
= 232323 . ( 474747 - 4747 )
= 232323 . 470000
= 109191810000
232323*474747-4747*232323
=232323*(474747-4747)
=232323*470000
=109191810000
tick đúng cho mik đi bạn
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{101010}{232323}=\frac{101010:10101}{232323:10101}=\frac{10}{23}\)
\(\frac{1010}{2323}=\frac{1010:101}{2323:101}=\frac{10}{23}\)
=>\(\frac{101010}{232323}=\frac{1010}{2323}\)(Đpcm)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{121212}{232323}=\dfrac{12x10101}{23x10101}=\dfrac{12}{23}=\dfrac{12.54}{23.54}=\dfrac{648}{1242}\)
\(\dfrac{4343}{5454}=\dfrac{43x101}{54x101}=\dfrac{43}{54}=\dfrac{43.23}{23.54}=\dfrac{989}{1242}\)
mà \(\dfrac{989}{1242}>\dfrac{648}{1242}\)
Nên \(\dfrac{121212}{232323}< \dfrac{4343}{5454}\)
\(\Rightarrow-\dfrac{121212}{232323}>-\dfrac{4343}{5454}\)
\(\Rightarrow\dfrac{-121212}{232323}>\dfrac{4343}{-5454}\)
Đính chính, có thể so sánh cách 2 nhanh hơn.
...\(\dfrac{12}{23}< \dfrac{12+31}{23+31}=\dfrac{43}{54}\)
\(\Rightarrow\dfrac{121212}{232323}< \dfrac{4343}{5454}\)
\(...\Rightarrow\dfrac{-121212}{232323}>\dfrac{4343}{-5454}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{212121}{232323}=\dfrac{212121:10101}{232323:10101}=\dfrac{21}{23}\)
\(\dfrac{123123}{124124}=\dfrac{123123:1001}{124124:1001}=\dfrac{123}{124}\)
Ta có: \(1-\dfrac{21}{23}=\dfrac{2}{23}\) ; \(1-\dfrac{123}{124}=\dfrac{1}{124}=\dfrac{2}{248}\)
\(=>\dfrac{2}{23}>\dfrac{2}{248}\)
\(=>1-\dfrac{21}{23}>1-\dfrac{123}{124}\)
\(=>\dfrac{21}{23}< \dfrac{123}{124}\)
\(=>\dfrac{212121}{232323}< \dfrac{123123}{124124}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
232323/434343=23/43=161/301
6/7=258/301
mà 161<258
nên 232323/434343<6/7
\(232323-232323=0\)
k mình nha Thank you !
Bạn nào cần bạn thì kết bạn nha
=0
nha
mà sao ngu thế