còn nữa mình quên, rút gọn phân số: 1212/3939 , 3131/3535
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{3131}{3535}=\dfrac{31}{35}\)
\(\dfrac{204204}{217217}=\dfrac{204}{217}\)
\(\dfrac{414414}{494949}=\dfrac{1518}{1813}\)
\(\dfrac{171171171}{180180180}=\dfrac{19}{20}\)
\(\dfrac{3131}{3535}=\dfrac{31}{35}\)
\(\dfrac{204204}{217217}=\dfrac{204}{217}\)
\(\dfrac{414414}{494949}=\dfrac{1518}{1813}\)
\(\dfrac{171171171}{180180180}=\dfrac{19}{20}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(\frac{6}{9}=\frac{6:3}{9:3}=\frac{2}{3}\)
b)\(\frac{10}{48}=\frac{10:2}{48:2}=\frac{5}{24}\)
c)\(\frac{72}{84}=\frac{72:12}{84:12}=\frac{6}{7}\)
d)\(\frac{1212}{3939}=\frac{1212:303}{3939:303}=\frac{4}{13}\)
#H
Rút gọn phân số:
\(\frac{6}{9}=\frac{6\div3}{9\div3}=\frac{2}{3}\)
\(\frac{10}{48}=\frac{10\div2}{48\div2}=\frac{5}{24}\)
\(\frac{72}{84}=\frac{72\div12}{84\div12}=\frac{6}{7}\)
\(\frac{1212}{3939}=\frac{1212\div303}{3939\div303}=\frac{4}{13}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{3131}{3535}=\frac{3131:101}{3535:101}=\frac{31}{35}\)
\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)
\(\frac{414141}{180180}=\frac{414141:273}{180180:273}=\frac{1517}{660}\)
\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{72}{84}\)=\(\frac{6}{7}\)
\(\frac{1212}{3939}\)=\(\frac{4}{13}\)
trả lời:
\(\frac{72}{84}=\frac{18}{21}=\frac{6}{7}\)
\(\frac{1212}{3939}=\frac{1212:101}{3939:101}=\frac{12}{39}=\frac{4}{13}\)
học tốt
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{6}{9}=\frac{6:3}{9:3}=\frac{2}{3}\)
\(\frac{18}{48}=\frac{18:2}{48:2}=\frac{9}{24}\)
\(\frac{72}{84}=\frac{72:12}{84:12}=\frac{6}{7}\)
\(\frac{1212}{3939}=\frac{1212:101}{3939:101}=\frac{12}{39}\)
TL
\(\frac{6}{9}=\frac{2}{3}\)
\(\frac{18}{48}=\frac{3}{8}\)
\(\frac{72}{84}=\frac{6}{7}\)
\(\frac{1212}{3939}=\frac{4}{13}\)
nha bn\
HT
![](https://rs.olm.vn/images/avt/0.png?1311)
1212/3939=4/13
3131/3535=31/35
tk mình nhé bạn
Thank you vẻy much
1212/3939 = 4/13
3131/3535 = 31/35
tk mình nha