Răspunsuri

2014-06-21T19:07:17+03:00
Ma=(a+b)/2

ma=(5/3 -3/7+1/3+3/7)/2     se simplifica  -3/7 cu 3/7

ma=( 5/3 +1/3)/2=

=6/3/2=
 
=6/3 * 1/2=

= 2/1 * 1/2= 2/2 =1
2014-06-21T19:10:54+03:00
Ma=a+b/2
a+b=5/3-3/7+1/3+3/7=6/3=2
ma=2/2=1
(a= \frac{5}{3} - \frac{3}{7} + b= \frac{1}{3} + \frac{3}{7} ) :2 3/7 si -3/7 se tai raman 5/3 +1/3 adunate dau 6/3 = 2 si rezultatul il imparti la 2 ! 2: 2 = 1
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