Question

Buna seara. 4 pe 19 x { 1 pe 2 + 11 pe 15 : [ 1 pe 60 + 162 x ( 1 pe 270+1 pe 405+1 pe 360)]}

Answer 1

Rezolvare:
1)$\frac{1}{270} + \frac{1}{405}= \frac{3+2}{810} = \frac{5}{810} = \frac{1}{162}$
2)$\frac{1}{162} + \frac{1}{360} = \frac{29}{3240}$
3)$\frac{162}{1} * \frac{29}{3240} = \frac{2349}{1620}$
4)$\frac{1}{60} + \frac{2349}{1620} = \frac{22}{15}$
5)$\frac{11}{15} : \frac{22}{15}= \frac{1}{2}$
6)$\frac{1}{2} + \frac{1}{2} =1$
7)$\frac{4}{19} *1= \frac{4}{19}$