Răspunsuri

2014-05-27T23:15:49+03:00
37(3a+7b)=41(6a+5b)
111a+259b=246a +205b
111a-246b=205b-259b
-135a=-55b |-5

27a=11b
a=11b/27

(2a+b)/(a+2b)=  (2* 11b/27 +b) /( 11b/27 +2b)    aducem la acelasi numitor in paranteze

(22b+27b)/27 / (11b+54b)/27=

=49b/27 * 27/65b=

=49b/65b=

=49/65
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