Question

[Lê Minh Châu]

Rút gọn phân số:

A = \(\frac{2^{13}.9-2^{12}.5}{2^{12}.6+2^{12}.7}\)

Answer 1

[Kiyotaka Ayanokoji]

\(A=\frac{2^{13}.9-2^{12}.5}{2^{12}.6+2^{12}.7}\)

    \(=\frac{2^{12}.\left(2.9-5\right)}{2^{12}.\left(6+7\right)}\)

      \(=\frac{2^{12}.\left(18-5\right)}{2^{12}.13}\)

      \(=\frac{2^{12}.13}{2^{12}.13}=1\)