đề bài sau có sai đề hay không ?
rút gọn các phân số sau : 232323/494949 204204/217217 171171171/ 180180180
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\(\dfrac{3131}{3535}=\dfrac{31}{35}\)
\(\dfrac{204204}{217217}=\dfrac{204}{217}\)
\(\dfrac{414414}{494949}=\dfrac{1518}{1813}\)
\(\dfrac{171171171}{180180180}=\dfrac{19}{20}\)
\(\dfrac{3131}{3535}=\dfrac{31}{35}\)
\(\dfrac{204204}{217217}=\dfrac{204}{217}\)
\(\dfrac{414414}{494949}=\dfrac{1518}{1813}\)
\(\dfrac{171171171}{180180180}=\dfrac{19}{20}\)
Ta có :
\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)
\(\frac{414141}{494949}=\frac{414141:10101}{494949:10101}=\frac{41}{49}\)
\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)
a, 204204 204204:1001 204
______= ___________ = ___
217217 217217:1001 217
b, 414141 414141:10101 41
______= ___________ = ___
494949 494949:10101 49
c, 171171171 171171171:9009009 19
_________= ________________= ___
180180180 180180180:9009009 20
chuc ban hok tot
\(\frac{3131}{3535}=\frac{3131:101}{3535:101}=\frac{31}{35}\)
\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)
\(\frac{414141}{180180}=\frac{414141:273}{180180:273}=\frac{1517}{660}\)
\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)
\(\frac{3131}{3535}=\frac{31}{35}\)
\(\frac{204204}{217217}=\frac{204}{217}\)
\(\frac{414141}{494949}=\frac{41}{49}\)
\(\frac{171171171}{180180180}=\frac{171}{180}\)
\(\frac{3131}{3535}=\frac{31}{35}\)
\(\frac{204204}{217217}=\frac{204}{217}\)
\(\frac{414141}{494949}=\frac{41}{49}\)
\(\frac{171171171}{180180180}=\frac{171}{180}=\frac{19}{20}\)
Chúc bạn học tốt nha!!!!
\(\frac{232323}{494949}=\frac{232323:10101}{494949:10101}=\frac{23}{49}\)
\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)
\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)
\(\frac{232323}{494949}=\frac{232323:10101}{494949:10101}=\frac{23}{49}\)
\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)
\(\frac{171171171}{180180180}=\frac{171171171::9009009}{180180180:9009009}=\frac{19}{20}\)