`-9 1/3*5/9+(-9 1/3)*4/9-0,5`
`=-9 1/3*(5/9+4/9)-0,5`
`=-9 1/3-0,5`
`=-59/6`
`(0,7+3 1/5):1/8+75%`
`=39/10*8+3/4`
`=156/5+3/4=639/20`
`(4-5/12):3+7/36`
`=43/12:3+7/36`
`=43/36+7/36`
`=50/36=25/18`
`1,25:15/20+(25%-5/6):4 2/3`
`=5/3+(1/4-5/6):14/3`
`=5/3-7/12:14/3`
`=5/3-1/8=37/24`
\(-9\dfrac{1}{3}\cdot\dfrac{5}{9}+\left(-9\dfrac{1}{3}\right)\cdot\dfrac{4}{9}-0,5\)
\(=-\dfrac{28}{3}\left(\dfrac{5}{9}+\dfrac{4}{9}\right)-\dfrac{1}{2}\)
\(=-\dfrac{28}{3}-\dfrac{1}{2}=-\dfrac{56}{6}-\dfrac{3}{6}=-\dfrac{59}{6}\)
\(\left(0,7+3\dfrac{1}{5}\right):\dfrac{1}{8}+75\%\)
\(=\left(0,7+3,2\right)\cdot8+0,75\)
\(=3,9\cdot8+0,75=31,95\)
\(\left(4-\dfrac{5}{12}\right):3+\dfrac{7}{36}\)
\(=\left(\dfrac{48}{12}-\dfrac{5}{12}\right):3+\dfrac{7}{36}=\dfrac{43}{36}+\dfrac{7}{36}=\dfrac{50}{36}=\dfrac{25}{18}\)
\(1,25:\dfrac{15}{20}+\left(25\%-\dfrac{5}{6}\right):4\dfrac{2}{3}\)
\(=\dfrac{5}{4}:\dfrac{3}{4}+\left(\dfrac{1}{4}-\dfrac{5}{6}\right):\dfrac{14}{3}\)
\(=\dfrac{5}{3}+\left(\dfrac{3}{12}-\dfrac{10}{12}\right)\cdot\dfrac{3}{14}=\dfrac{5}{3}+\dfrac{-7}{12}\cdot\dfrac{3}{14}\)
\(=\dfrac{5}{3}+\dfrac{-1}{8}=\dfrac{40}{24}-\dfrac{3}{24}=\dfrac{37}{24}\)
