Răspunsuri

2014-10-13T20:43:41+03:00
=-5/12-3/10-4/15=aducem la acelasi numitor
calculam c.m.m.m.c
12=3·2²
10=2·5
15=3·5
[12,10,15]=2²·3·5=60
⇔(-5·5)/60-(3·5)/60-(4·4)/60=-25/60-15/60-16/20=-40/60-16/60=-56/60=simplificam cu 4=-14/15=-0,9(3)
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