DÚ 1

Vypočítejte:

  1. \displaystyle \frac{8\cdot4\frac{1}{4}-11\frac{1}{5}:9\frac{1}{3}-(-2\frac{1}{3}):\frac{5}{3}}{14:2\frac{2}{9}+8\frac{2}{5}\cdot1\frac{2}{7}}=
  2. \displaystyle 0,05-\frac{(2\frac{4}{5}-1,9):3\frac{3}{4}}{[3\frac{1}{6}-(-1,25)]\cdot2,4+(-5,8)}=
  3. \displaystyle \frac{30\cdot4\frac{1}{4}+11\frac{1}{5}:5\frac{3}{5}}{14:2\frac{2}{9}+8\frac{2}{5}\cdot14\frac{2}{3}}:\frac{1:6+12:5}{2\frac{1}{2}\cdot15-4\frac{13}{15}\cdot7\frac{3}{5}}=
  4. \displaystyle 2,1:\left[\frac{(4,5\cdot1\frac{2}{3}+3,75)\cdot\frac{7}{135}}{1-\frac{10}{27} :\frac{5}{6}}\right]:2,5=
  5. \displaystyle \left(\frac{2}{5}:2\frac{1}{2}\right)\cdot \left(4\frac{1}{5}-1\frac{3}{40}\right)+1,35:2,7=
  6. \displaystyle \dfrac{\frac74-\frac32}{0,7+\frac54}-\dfrac{\frac4{13}}{\frac{37}{24}-\frac78}+\left(\dfrac7{12}-\dfrac14\right)

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