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\(\dfrac{12}{72}\)=\(\dfrac{1}{6}\)
\(\dfrac{15}{57}\)=\(\dfrac{5}{19}\)
\(\dfrac{40}{60}\)=\(\dfrac{2}{3}\)
Cho tớ \(1\)like nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
`27/81=(27:27)/(81:27)=1/3`
`57/76=(57:19)/(76:19)=3/4`
`35/84=(35:7)/(84:7)=5/12`
`MSC:12`
`1/3=(1xx4)/(3xx4)=4/12`
`3/4=(3xx3)/(4xx3)=9/12`
`5/12` giữ nguyên
\(\dfrac{27}{81}=\dfrac{1}{3}\); \(\dfrac{57}{76}=\dfrac{3}{4}\); \(\dfrac{35}{84}=\dfrac{5}{12}\)
\(\dfrac{1}{3}=\dfrac{4}{12}\)
\(\dfrac{3}{4}=\dfrac{9}{12}\)
Giữa nguyên 5/12
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\(\frac{57}{24}\)\(=\frac{57:3}{24:3}\)\(=\frac{19}{8}\)
k mình nha
Viết mỗi số sau thành tổng (theo mẫu):
mẫu 10837=10000+800+30+7
265 175 ; 1 050 694 ; 321 126 ; 57 605
![](https://rs.olm.vn/images/avt/0.png?1311)
`265175 = 200000 + 60 000 + 5 000 + 100 + 70 + 5`
`1 050 694 = 1 000 000 + 50 000 + 600 + 90 + 4`
`321 126 = 300 000 + 20 000 + 1 000 + 100 + 20 + 6`
`57 605 = 50 000 + 7 000 + 600 + 5`
265 175 = 200 000 + 60 000 + 5 000 + 100 + 70 + 5
1 050 694 = 1 000 000 + 50 000 + 600 + 90 +4
321 126 = 300 000 + 20 000 + 1 000 + 100 + 20 + 6
57 605 = 50 000 + 7 000 + 600 + 5
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a.\dfrac{11}{10}\text{=}\dfrac{11\times3}{10\times3}\text{=}\dfrac{33}{30}\)
\(\dfrac{19}{30}\) giữ nguyên
\(b.\dfrac{23}{38}\text{=}\dfrac{23\times3}{38\times3}\text{=}\dfrac{69}{114}\)
\(\dfrac{14}{57}\text{=}\dfrac{14\times2}{57\times2}\text{=}\dfrac{28}{114}\)
=1/10 nha
HT
k cho mình nha
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