Question

*Mong các bạn giúp mình ạ^^*

(\(\dfrac{1}{2}\)-0,75).(0,2-\(\dfrac{2}{5}\)) /  \(\dfrac{5}{9}\) - (\(1\dfrac{1}{2}\))

Answer 1

=(1/2-3/4)*(1/5-2/5):5/9-3/2

=-1/4*(-1/5)*9/5-3/2

=1/20*9/5-3/2

=9/100-3/2=9/100-150/100=-141/100