2 i 1\3 + 1 i 3\4 - (3 i 1\3 + 2 i 5\6)=
9 i 5\9 - 6 i 4\5
4 i 1\7 / 1 i 2\3
3 i 3\4 * 1,2 + 1,5 / 2 i 2\5 - 1\8
(1,2 / 3\5 - 1 i 1\3 / 0,3) / 1 i 1\7
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1) =7\3+7\4-(10\3+17\6)= (wspulny mianownik=12)
=28\12+21\12-(40\12+34\12) = 49\12-74\12 = -25\12= -2i1\12
2) 9i25\45-6i36\45=8i70\45-6i36\45=2i34\45
3) 29\7 : 5\3=29\7 * 3\5=87\35=2i17\35
4)3,75*1,2 + 1,5 :2,4 -0,125 =4,4+0,625 -0,125 =5,025-0,125=4,9
5) =(1i2\10 : 3\5 -1i1\3 : 3\10) :1i1\7 =12\10 : 3\5 -4\3 :3\10) : 8\7=
=(12\10 *5\3 - 4\3*10\3) : 8\7 = ( 60\30 -40\9) :8\7 =(2-4i4\9):8\7=
=-2i4\9:8\7 =-22\9*7\8=-154\72=-2i10\72