= 1/3 nha bạn 

ai k mình k lại

1/3 nha ban ghet con trai nen cu cho co gai nha 

rút gọn phân số :

121212/363636 = 3

\(=\dfrac{1}{3}\)

\(\dfrac{121212}{363636}=\dfrac{121212\div121212}{363636\div121212}=\dfrac{1}{3}\)

\(\dfrac{121212}{363636}=\dfrac{121212\div10101}{363636\div10101}=\dfrac{12}{36}=\dfrac{1}{3}\)

121212/363636 được rút gọn thành 1/3

121212/363636=1x121212/3x121212

                      =1/3

\(\frac{121212}{363636}\) = \(\frac{12}{36}\) = \(\frac{1}{3}\)

Đúng thì k nha !

\(\frac{121212+12121212-1212}{363636-36363636-3636}=\frac{12\left(111111+11111111-1111\right)}{36\left(111111+11111111-1111\right)}=\frac{12}{36}=\frac{1}{3}\)

1/3 nha

\(\frac{1}{3}\)

chúc ban hk tốt!!(k cho tui nhé)

a.12/42

b.2.000000001

a)121212/424242=12/42=2/7

b)19999999999/99999999995=1/5

\(a,\)\(\frac{121212}{424242}\)\(=\)\(\frac{121212:60606}{424242:60606}\)\(=\)\(\frac{2}{7}\)

\(b,\)\(\frac{19999999999}{99999999995}\)\(=\)\(\frac{19999999999:19999999999}{99999999995:19999999999}\)\(=\)\(\frac{1}{5}\)

k cho mình nha chúc bạn học tốt

ai k cho mình mình k lai

\(\frac{1}{4}\)

121212/484848 = 121212 : 121212 / 484848 : 121212 = 1/4

              Đáp số : 1/4

\(\frac{121212}{484848}=\frac{12x10101}{48x10101}=\frac{12}{48}=\frac{1}{4}\)

151515/363636 = 15. 10101 / 36 . 10101 = 15 / 36 = 5/12

135135135 / 162162162 = 135 . 1001001 / 162 . 1001001 = 135 / 162 = 5/6

151515/363636 = 5/12

135135135/162162162 = 5/6

151515 / 363636 = 5 / 12

135135135 / 162162162 = 5 / 6

mình ko viết được phân số thông cảm

\(\frac{121212+12121212-1212}{363636+36363636-3636}\)

\(=\frac{12.10101+12.1010101-12.101}{36.10101+36.1010101-36.101}\)

\(=\frac{12\left(10101+1010101-101\right)}{36\left(10101+1010101-101\right)}\)

\(=\frac{12}{12.3}\)

\(=\frac{1}{3}\)

Ta có: \(\frac{121212+12121212-1212}{363636+36363636-3636}\)

           =\(\frac{12\times\left(10101+1010101-101\right)}{36\times\left(10101+1010101-101\right)}\)

           =\(\frac{12}{36}\)

           =\(\frac{1}{3}\)

\(\frac{121212+12121212-1212}{363636+36363636-3636}\)

\(=\frac{121212+12121212-1212}{3\times121212+3\times12121212-3\times1212}\)

\(=\frac{121212+12121212-1212}{3\times\left(121212+12121212-1212\right)}\)

\(=\frac{1}{3}\)

_Chúc bạn học tốt_