Question

\(\dfrac{66666.87654-33333}{22222.87650-77777}=?\)

Toán nâng cao đó nha :))

Answer 1

Ta có: \(\dfrac{66666\cdot87654-33333}{22222\cdot87650-77777}\)

\(=\dfrac{33333\left(2\cdot87654-1\right)}{11111\left(2\cdot87650-7\right)}\)

\(=\dfrac{3\cdot175307}{175293}=\dfrac{525921}{175293}=\dfrac{175307}{58431}\)