\(\frac{5}{9}:\left(\frac{1}{11}-\frac{5}{22}\right)+\frac{5}{9}:\left(\frac{1}{15}-\frac{2}{3}\right)\)

\(=\frac{5}{9}:\frac{-3}{22}+\frac{5}{9}:\frac{-3}{5}\)

\(=\frac{5}{9}\cdot\frac{-22}{3}+\frac{5}{9}\cdot\frac{-5}{3}\)

\(=\frac{5}{9}\cdot\left(\frac{-22}{3}+\frac{-5}{3}\right)\)
\(=\frac{5}{9}\cdot\left(-9\right)\)

\(=-5\)

Đúng rồi em ạ :)

đúng đó nhưng bạn nên nhóm \(\frac{-22}{3}\)và \(\frac{-5}{3}\)vào với nhau và đặt \(\frac{5}{9}\)ra ngoài sẽ tính nhanh hơn

Đúng r đấy e

\(\frac{9}{22}+\frac{3}{11}\)

\(=\frac{9}{22}+\frac{6}{22}\)

\(=\frac{15}{22}\)

Đáp số : \(\frac{15}{22}\)

15/22

15/22 nha bn!

\(\frac{-5}{12}:\left(\frac{11}{4}x-\frac{3}{4}\right)=\frac{22}{9}\)

\(\Rightarrow\frac{11}{4}x-\frac{3}{4}=\frac{-5}{12}:\frac{22}{9}\)

\(\Rightarrow\frac{11}{4}x=\frac{-15}{88}+\frac{3}{4}\)

\(\Rightarrow x=\frac{51}{88}:\frac{11}{4}=\frac{51}{242}\)

Vậy \(x=\frac{51}{242}\)

\(\frac{5}{9}:\left(\frac{1}{11}-\frac{5}{22}\right)+\frac{5}{9}:\left(\frac{1}{15}-\frac{2}{3}\right)\)

\(=\frac{5}{9}:\left(\frac{2}{22}-\frac{5}{22}\right)+\frac{5}{9}:\left(\frac{1}{15}-\frac{10}{15}\right)\)

\(=\frac{5}{9}:\frac{\left(-3\right)}{22}+\frac{5}{9}:\frac{\left(-9\right)}{15}\)

\(=\frac{5}{9}.\frac{22}{\left(-3\right)}+\frac{5}{9}.\frac{15}{\left(-9\right)}\)

\(=\frac{5}{9}.\left(\frac{-22}{3}+\frac{-15}{9}\right)\)

\(=\frac{5}{9}.\left(\frac{-66}{9}+\frac{-15}{9}\right)\)

\(=\frac{5}{9}.\frac{\left(-81\right)}{9}=-5\)

\(\frac{5}{9}:\left(\frac{1}{11}-\frac{5}{22}\right)+\frac{5}{9}:\left(\frac{1}{15}-\frac{2}{3}\right)\)

\(=\frac{5}{9}:\left(\frac{-3}{22}\right)+\frac{5}{9}:\left(\frac{-3}{5}\right)\)

\(=\frac{5}{9}.\left(-\frac{22}{3}\right)+\frac{5}{9}.\left(-\frac{5}{3}\right)\)

\(=\frac{5}{9}.\left[-\frac{22}{3}+\left(-\frac{5}{3}\right)\right]\)

\(=\frac{5}{9}.\left(-9\right)\)

\(=-5\)

\(\frac{5}{9}:\left(\frac{1}{11}-\frac{5}{22}\right)+\frac{5}{9}:\left(\frac{1}{15}-\frac{2}{3}\right)\)

\(=\frac{5}{9}:\left[\left(\frac{1}{11}-\frac{5}{22}\right)+\left(\frac{1}{15}-\frac{2}{3}\right)\right]\)

\(=\frac{5}{9}:\left[-\frac{3}{22}-\frac{3}{5}\right]\)

\(=\frac{5}{9}:\frac{-81}{110}=\frac{5}{9}.\frac{-110}{81}\)

\(=-\frac{550}{729}\)

\(\frac{5}{9}:\frac{-3}{22}+\frac{5}{9}:\frac{-3}{5}\)

=\(\frac{5}{9}.\frac{-22}{3}+\frac{5}{9}.\frac{-5}{3}\)

=\(\frac{5}{9}.\left(\frac{-22}{3}-\frac{5}{3}\right)\)

=\(\frac{5}{9}.\left(-9\right)\)

=-5

cái ảnh của minh anh coi truong 

 gớm

15/22

               Tk cho Mk nhe

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