3 1/9 - 4 3/4 - (-2,1) =
5/6 :0,3 =
TE UKOSNIKI KOŁO ZNAKÓW TO 1 nad 9 ITP. CZYLI JEDNA DZIEWIATA
3*1/9 - 4 * 3/4 - (-2,1) = 1/3-3+2,1=1/3-3/1+21/10=10/30-90/30+63/30=-7/30
5/6 :0,3 =5/6:3/10=1/2:1/2=1
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3*1/9 - 4 * 3/4 - (-2,1) = 1/3-3+2,1=1/3-3/1+21/10=10/30-90/30+63/30=-7/30
5/6 :0,3 =5/6:3/10=1/2:1/2=1