\(\frac{3131}{3535}=\frac{31}{35}\)

\(\frac{204204}{217217}=\frac{204}{217}\)

\(\frac{414141}{494949}=\frac{41}{49}\)

\(\frac{171171171}{180180180}=\frac{171}{180}=\frac{19}{20}\)

Chúc bạn học tốt nha!!!!

\(\dfrac{3131}{3535}=\dfrac{31}{35}\)

\(\dfrac{204204}{217217}=\dfrac{204}{217}\)

\(\dfrac{414414}{494949}=\dfrac{1518}{1813}\)

\(\dfrac{171171171}{180180180}=\dfrac{19}{20}\)

\(\dfrac{3131}{3535}=\dfrac{31}{35}\)

\(\dfrac{204204}{217217}=\dfrac{204}{217}\)

\(\dfrac{414414}{494949}=\dfrac{1518}{1813}\)

\(\dfrac{171171171}{180180180}=\dfrac{19}{20}\)

3131/3535 = 31/35

204204/217217 = 204/217

414414/494949 = 414/494

171171171/180180180 =171/180

\(\frac{3131}{3535}=\frac{3131:101}{3535:101}=\frac{31}{35}\)

\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)

\(\frac{414141}{180180}=\frac{414141:273}{180180:273}=\frac{1517}{660}\)

\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)

cảm ơn bn

\(\frac{3131}{3535}=\frac{31.101}{35.101}=\frac{31}{35}.\)

\(\frac{204204}{217217}=\frac{204.1001}{217.1001}=\frac{204}{217}.\)

\(\frac{414141}{494949}=\frac{41.10101}{49.10101}=\frac{41}{49}.\)

\(\frac{171171171}{180180180}=\frac{171.1001001}{180.1001001}=\frac{171}{180}.\)

giúp mình với.

cái này tôi chịu 

Ta có :

\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)

\(\frac{414141}{494949}=\frac{414141:10101}{494949:10101}=\frac{41}{49}\)

\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)

=204/217    41/49   95/100 nha bạn

204204/217217 = 204/217

414141/494949 = 41/49

171171171/180180180=171/180

đúng 100% luôn

tk mình nha bn

`4242/3132=(4242:101)/(3131:101)=42/31`

\(\dfrac{4242}{3131}=\dfrac{4242:101}{3131:101}=\dfrac{42}{31}\)

\(\dfrac{4242}{3131}\)\(=\dfrac{4242:101}{3131:101}=\dfrac{42}{31}\)

\(\frac{232323}{494949}=\frac{232323:10101}{494949:10101}=\frac{23}{49}\)

\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)

\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)

\(\frac{232323}{494949}=\frac{232323:10101}{494949:10101}=\frac{23}{49}\)

\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)

\(\frac{171171171}{180180180}=\frac{171171171::9009009}{180180180:9009009}=\frac{19}{20}\)

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