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2014-06-25T17:36:13+03:00
(1+3/2 * 5/2):6 -1=

=(1+ 15/4) * 1/6 -1=  aducem la acelasi numitor  in paranteza

=(4+15)/4 * 1/6-1=

= 19/4 * 1/6 -1=

=19/24-1 =     aducem la acelasi numitor

(19-24)/24= -5/24
1 5 1
2014-06-25T17:39:47+03:00