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2014-09-29T22:59:59+03:00
 1,(6)=16-1/9=15/9 simplificam=5/3
-0,7 • 1,(6) =-7/10·5/3=-7/6
 3,17 : (-0,317) = 317/100:(-317/1000)=317/100·(-1000/317)=-10
 1/15 + 15/6 + 1/9 = 1/15+5/3+1/9=3/45+72/45+5/45=80/45 simpl.=16/9
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