Question

Điền dấu >, <, = vào ô trống : 181818/ 212121...... 6/7

Answer 1

Điền dấu = nhé

k nha

Answer 2

dấu " = " là đúng nha

Answer 3

 \(\frac{181818}{212121}\)= \(\frac{6}{7}\)

Answer 4

Ta có :

\(\frac{181818}{212121}=\frac{18\times10101}{21\times10101}=\frac{18}{21}\)

\(\frac{6}{7}=\frac{6\times3}{7\times3}=\frac{18}{21}\)

\(\rightarrow\frac{181818}{212121}=\frac{6}{7}\)(vì \(\frac{18}{21}=\frac{18}{21}\))

Answer 5

Điền dấu " = "

Hk tốt

Answer 6

ta có:181818:30303=6,212121:30303=7

Suy ra 181818/212121=181818:30303/212121:30303

Vậy 181818/212121=6/7

Hok tốt

Answer 7

\(\frac{181818}{212121}....\frac{6}{7}\)

Ta có : \(\frac{6}{7}=\frac{6\cdot30303}{7\cdot30303}=\frac{181818}{212121}\)

Mà \(\frac{181818}{212121}=\frac{181818}{212121}\)

\(\Rightarrow\frac{181818}{212121}=\frac{6}{7}\)

Answer 8

181818 / 212121=6/7 =6/7

Answer 9

Ta có;\(\frac{181818}{212121}\)và \(\frac{6}{7}\)

Mà : \(\frac{181818=30303.6}{212121=30303.7}\)= \(\frac{6}{7}\)=\(\frac{6}{7}\)

Vậy : \(\frac{181818}{212121}\)=\(\frac{6}{7}\)