13/19 < 19/... < 13/18
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
13/19x23/11-13/19x8/11-13/19x4/11
=(23/11-8/11-4/11)=11/11=1
=13/19x1
=13/19
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{13}{19}\cdot\frac{23}{11}-\frac{13}{19}\cdot\frac{8}{11}-\frac{13}{19}\cdot\frac{4}{11}=\frac{13}{19}\cdot\left(\frac{23}{11}-\frac{8}{11}-\frac{4}{11}\right)\)
\(=\frac{13}{19}\cdot1=\frac{13}{19}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
13/19 x 23/11 - 13/19 x 8/11 - 13/19 x 4/11
= 13/19 x (23/11 - 8/11 - 4/11)
= 13/19 x 1
= 13/19
\(\dfrac{13}{19}\times\dfrac{23}{11}-\dfrac{13}{19}\times\dfrac{8}{11}-\dfrac{13}{19}\times\dfrac{4}{11}\\ =\dfrac{13}{19}\times\left(\dfrac{23}{11}-\dfrac{8}{11}-\dfrac{4}{11}\right)\\ =\dfrac{13}{19}\times1=\dfrac{13}{19}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{13}{19}\times\frac{23}{11}-\frac{13}{19}\times\frac{8}{11}-\frac{13}{19}\times\frac{4}{11}\)
\(=\frac{13}{19}\times\left(\frac{23}{11}-\frac{8}{11}-\frac{4}{11}\right)\)
\(=\frac{13}{19}\times1\)
\(=\frac{13}{19}\)
13/19 x 23/11 - 13/19 x 8/11 - 13/19 x 4/11
= 13/19 x (23/11 - 8/11 - 4/11)
= 13/19 x 1
= 13/19
![](https://rs.olm.vn/images/avt/0.png?1311)
21.(19-13) - 19(21-13)
= 21.19 - 21.13 - 19.21 + 19.13
= ( 21.19 - 19.21) - 13.( 21 - 19)
= 0 - 13. 2
= - 26
![](https://rs.olm.vn/images/avt/0.png?1311)
29.(19 - 13) - 19.(19 - 13)
= 29.6 - 19.6
= 6.(29 - 19)
= 6.10
= 60
29 . (19 - 13 ) - 19 . ( 29 - 13 )
=29 . 6 - 19 . 16
=174 - 304
=130
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có:
3.7/19-7/13.5/19-7/19.8/13
=3.7/19-7/19.5/13-7/19.8/13
=3.7/19-7/19.(5/13+8/13)
=3.7/19-7/19.1
=7/19.(3-1)
=7/19.2
=14/19
Ta có:
3.7/19-7/13.5/13-7/19.8/13
=3.7/19-7/19.5/13-7/19.8/13
=3.7/19-7/19.(5/13+8/13)
=3.7/19-7/19.1
=7/19.(3-1)
=7/19.2
=14/19
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
=29.19-29.13-19.29+19.13
=-29.13+19.13
=13.(-29+19)
=13.(-100
=-130
tk mk nha
ai tk mk
mk tk lai
giúp mình với mình k cho
tớ nghĩ là:
13/19<19/7<13/8
học tốt