Question

A=\(\dfrac{5}{4}.\left(5-\dfrac{4}{3}\right).\left(-\dfrac{1}{11}\right)\)

Answer 1

\(A=\dfrac{5}{4}.\left(5-\dfrac{4}{3}\right).\left(\dfrac{-1}{11}\right)\)

\(A=\dfrac{5}{4}.\dfrac{11}{3}.\dfrac{-1}{11}=\dfrac{5}{4}.\dfrac{-1}{3}=-\dfrac{5}{12}\)

Answer 2

A= \(\dfrac{5}{4}\).(5-\(\dfrac{4}{3}\)).(-\(\dfrac{1}{11}\))

A=\(\dfrac{5}{4}\).(\(\dfrac{15}{3}\)- \(\dfrac{4}{3}\)).(-\(\dfrac{1}{11}\))

A=\(\dfrac{5}{4}\). \(\dfrac{11}{3}\).\(\dfrac{-1}{11}\)

A=\(\dfrac{5.11.\left(-1\right)}{4.3.11}\)

A=\(\dfrac{5.1.\left(-1\right)}{4.3.1}\)

A=\(\dfrac{-5}{12}\)

Vậy A=\(\dfrac{-5}{12}\)