Question

75% + 1,1 : \(\left(\dfrac{2}{5}-1\dfrac{1}{2}\right)-\left(\dfrac{1}{3}\right)^2\)

Answer 1

\(=\dfrac{3}{4}+\dfrac{11}{10}:\left(\dfrac{2}{5}-\dfrac{3}{2}\right)-\dfrac{1}{9}\)

\(=\dfrac{3}{4}+\dfrac{11}{10}:-\dfrac{11}{10}-\dfrac{1}{9}=\dfrac{3}{4}+\left(-1\right)-\dfrac{1}{9}=\dfrac{27}{36}-\dfrac{36}{36}-\dfrac{4}{36}=-\dfrac{13}{36}\)

Answer 2

\(=\dfrac{3}{4}+1,1:\dfrac{-11}{10}-\dfrac{1}{9}\)

\(=\dfrac{3}{4}+\left(-1\right)-\dfrac{1}{9}\)

\(=\dfrac{27}{36}+\dfrac{-36}{36}-\dfrac{4}{36}\)

\(=\dfrac{-13}{36}\)

Answer 3

Answer 4

\(=\dfrac{3}{4}+\dfrac{11}{10}:\left(\dfrac{2}{5}-\dfrac{3}{2}\right)-\dfrac{1}{9}=\dfrac{3}{4}+\dfrac{11}{10}:-\dfrac{11}{10}-\dfrac{1}{9}=\dfrac{3}{4}+-1-\dfrac{1}{9}=-\dfrac{13}{36}=-0,36\left(1\right)\)