Question

( 3phần 4 + 2phần 3 ) : 17phần4 - 3 phần 4

Answer 1

\(\left(\dfrac{3}{4}+\dfrac{2}{3}\right):\dfrac{17}{4}-\dfrac{3}{4}\)

\(=\left(\dfrac{9}{12}+\dfrac{8}{12}\right):\dfrac{17}{4}-\dfrac{3}{4}\)

\(=\dfrac{17}{12}:\dfrac{17}{4}-\dfrac{3}{4}\)

\(=\dfrac{17.4}{17.12}-\dfrac{3}{4}\)

\(=\dfrac{1}{3}-\dfrac{3}{4}\)

\(=\dfrac{4}{12}-\dfrac{9}{12}\)

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