\(\frac{199519951995}{199619961996}=\frac{1995.100010001}{1996.100010001}=\frac{1995}{1996}\)

\(\frac{130130}{180180}=\frac{130.1001}{180.1001}=\frac{130}{180}=\frac{13}{18}\)

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

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

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

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

cảm ơn bn

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

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

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

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

a, Rút gọn phân số:

\(\frac{108108}{102102}=\frac{108108:6006}{102102:6006}=\frac{18}{17}.\)

Chúc bạn học tốt!

Cảm ơn Vũ Minh Tuấn 

                                                      Bài giải

a, \(\frac{108108}{102102}=\frac{108108\text{ : }1001}{102102\text{ : }1001}=\frac{108}{102}=\frac{54}{51}\)

b, \(\frac{2242,82\text{ : }100+37411,8\text{ : }1000}{25\text{ x }14,96\text{ x }16}=\frac{2242,82\text{ x }\frac{1}{100}+37411,8\text{ x }\frac{1}{100}\text{ x }\frac{1}{10}}{25\text{ x }14,96\text{ x }16}\)

\(=\frac{\frac{1}{100}\text{ x }\left(2242,82+37411,8\text{ x }\frac{1}{10}\right)}{25\text{ x }14,96\text{ x }16}=\frac{\frac{1}{100}\text{ x }\left(2242,82+3741,18\right)}{25\text{ x }14,96\text{ x }16}=\frac{\frac{1}{100}\text{ x }5984}{25\text{ x } 239,36}=\frac{\frac{1}{100}\text{ x }25}{25}=\frac{1}{100}\)

18/17

A=B/C

B=11-11/5-11/25-11/125

=11(1-1/5-1/25-1/125)

C=9-9/5-9/25-9/125

=9(1-1/5-1/25-1/125)

Chia ca B va C cho(1-1/5-1/25-1/125)

A=B/C=11/9

nhớ k cho mink nhé

\(-\frac{108.1001}{216.1001}\)=\(-\frac{108}{216}\) ?

-108m/216m

\(\dfrac{2}{9}\),\(\dfrac{7}{12}\),\(\dfrac{18}{41}\),\(\dfrac{2}{5}\),\(\dfrac{19}{20}\),\(\dfrac{41}{49}\)

mọi người ko trả lời ak