Question

[2 sobre 5 . (1 sobre 2 - 1) + ( 6 sobre 5) elevado a la 2 ] : 1 sobre 2 + 2 . ( -10) elevado a la -1

Answer 1

$<var>=\frac{2}{5}</var>$ x $<var>\frac{1}{2 -1}</var>$ + $<var>(\frac{6}{5})^{2} </var>$ : $<var>\frac{1}{4} </var>$ x $<var>(10)^{-1}</var>$

= $<var>\frac{2}{5}</var>$ + $<var>\frac{36}{25}</var>$ : $<var>\frac{1}{4}</var>$ x -$<var>\frac{1}{10}</var>$

 

= $<var>\frac{2}{5}</var>$ - $<var>\frac{72}{125}</var>$

 

= -$<var>\frac{22}{125}</var>$