Question

(3/4 - 0,2).(0,4-4/5)

Answer 1

`(3/4 - 0,2).(0,4-4/5)= (3/4-1/5).(2/5-4/5)=11/20-(-2/5)=11/20+2/5=19/20`

Answer 2

\(=\left(\dfrac{3}{4}-\dfrac{1}{5}\right).\left(\dfrac{2}{5}-\dfrac{4}{5}\right)\Rightarrow\dfrac{11}{20}.\dfrac{-2}{5}=\dfrac{-22}{100}=-\dfrac{11}{50}\)

Answer 3

(3/4 - 0,2).(0,4-4/5)

=(3/4−1/5)⋅ (2/5−4/5)

=11/20⋅ (−2/5) = −22/100 = −11/50