Câu hỏi của George H. Dalton

Question

Tính $\dfrac{2181.729+243.81.27}{3^2.9^2.234+18.54.162.9+723.729}$

Nguyễn Lê Phước Thịnh · Accepted Answer

$=\dfrac{3^7\cdot727+3^{12}}{3^8\cdot2\cdot13+2^3\cdot3^{11}+3^7\cdot241}$

$=\dfrac{3^7\left(727+3^5\right)}{3^7\left(2\cdot13+2^3\cdot3^4+241\right)}=\dfrac{970}{17089}$

Câu trả lời:

$=\dfrac{3^7\cdot727+3^{12}}{3^8\cdot2\cdot13+2^3\cdot3^{11}+3^7\cdot241}$

$=\dfrac{3^7\left(727+3^5\right)}{3^7\left(2\cdot13+2^3\cdot3^4+241\right)}=\dfrac{970}{17089}$