Question

mọi người ơi giúp mình câu này ạ 2/49 nhân 121 chia 22/7

 

Answer 1

    \(\dfrac{2}{49}\) x 121 : \(\dfrac{22}{7}\)

= \(\dfrac{2}{49}\) x 121 x \(\dfrac{7}{22}\)

= \(\dfrac{2}{7\times7}\) \(\times\)\(\dfrac{11\times11\times7}{11\times2}\) 

= \(\dfrac{11}{7}\)

Answer 2

\(\dfrac{2}{49}\times121:\dfrac{22}{7}\)

\(=\dfrac{2\times121}{49}\times\dfrac{7}{22}\)

\(=\dfrac{2\times121\times7}{49\times22}\)

\(=\dfrac{2\times11\times11\times7}{7\times7\times22}\)

\(=\dfrac{22\times11}{7\times22}\)

\(=\dfrac{11}{7}\)

Answer 3

\(\dfrac{2}{49}\times121:\dfrac{22}{7}\)

\(=\dfrac{2\times121}{49}\times\dfrac{7}{22}\)

\(=\dfrac{2\times121\times7}{49\times22}\)

\(=\dfrac{11}{7}\)

Answer 4

cảm ơn mọi người ạ 

 

Answer 5

7p

 

Answer 6

11/7