Question

Rút gọn

11.4-11/2-13            9.6-9.2/18                   13.2-13.3/1-14

cảm ơn các bác jup tôi

Answer 1

a) Ta có: \(\dfrac{11\cdot4-11}{2-13}\)

\(=\dfrac{11\cdot\left(4-1\right)}{-11}\)

\(=\dfrac{33}{-11}=-3\)

b) Ta có: \(\dfrac{9\cdot6-9\cdot2}{18}\)

\(=\dfrac{9\cdot\left(6-2\right)}{18}\)

\(=\dfrac{36}{18}=2\)

c) Ta có: \(\dfrac{13\cdot2-13\cdot3}{1-14}\)

\(=13\cdot\dfrac{\left(2-3\right)}{-13}\)

=1