Question

2 : 2pe3 + 11 pe5 :11 pe 10

Answer 1

  
$2: (\frac{2}{3})^{2} + \frac{11}{5}: \frac{11}{10}= \\ \\ = 2:\frac{2^{2}}{3^{2}}+ \frac{11}{5}: \frac{11}{10}= \\ \\ 2:\frac{4}{9}+ \frac{11}{5}: \frac{11}{10}= \\ \\ 2*\frac{9}{4}+ \frac{11}{5}* \frac{10}{11}= \\ \\ = \frac{2*9}{4} + \frac{11*10}{5*11} = \frac{9}{2} +2= 4,5 + 2 = 6,5$