chi tiết nhá

31/35

31/35

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

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

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

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

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

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

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

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

3131/3535 = 31/35

204204/217217 = 204/217

414414/494949 = 414/494

171171171/180180180 =171/180

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

1212/3939=4/13

3131/3535=31/35

k mk nha

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

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

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

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

cảm ơn bn

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

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

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

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

ủa cái mạ j zậy 

là sao

đây nha

=15/31

\(\dfrac{-1515}{-3131}=\dfrac{\left(-1515\right):\left(-101\right)}{\left(-3131\right):\left(-101\right)}=\dfrac{15}{31}\)

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

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

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

chia cả tử và mẫu cho 101

=31/45

chia cho 101 bạn ơi=)))

thành 31/45

Đáp án A

N = 4 17 - 4 49 - 4 131 3 17 - 3 49 - 3 131 = 4 . 1 17 - 4 . 1 49 - 4 . 1 131 3 . 1 17 - 3 . 1 49 - 3 . 1 131 = 4 1 17 - 1 49 - 1 131 3 1 17 - 1 49 - 1 131 = 4 3