Question

[Nam Đặng]

rút gọn

123 x 17 + 100/ 18 x 123 -23

Answer 1

[Nguyễn Sơn Tùng]

\(\dfrac{123\cdot17+100}{18\cdot123-23}=\dfrac{123\cdot17+100}{17\cdot123+123-23}=\dfrac{100}{123-100}=1\)

Answer 2

[Nguyễn Thị Thương Hoài]

A = \(\dfrac{123.17+100}{18.123-23}\) = \(\dfrac{123.17+100}{123.17+123-23}\) = \(\dfrac{123.17+100}{123.17+\left(123-23\right)}\)

A = \(\dfrac{123.17+100}{123.17+100}\) = 1