Question

[ngu thi tra my]

Khong quy dong mau so hay so sanh hai phan so 12 phan 49 va 13 phan 47

Answer 1

[Đinh Khắc Duy]

Vì    \(\frac{12}{49}< \frac{13}{49}\)

        \(\frac{13}{49}< \frac{13}{47}\)

Nên \(\frac{12}{49}< \frac{13}{47}\)

Answer 2

[Kaneki Ken]

Ta có 13/47>13/49

Mà 13/49>12/49

=> 12/49<13/47