Odpowiedzi

2010-04-15T18:23:38+02:00
1)(⁵/₂₃- ³/₄₆)- (-⁷/₂)+ ⁷/₂₃=3i 22/23
¹⁶/₃+¹³/₆) - (⁸/₉+ 1½-6 ²/₉)=11 i 2/9
2010-04-15T18:32:52+02:00
1)(⁵/₂₃- ³/₄₆)- (-⁷/₂)+ ⁷/₂₃=10/46-3/46+161/46+14/46=7/46+175/46=182/46=91/23=4 19/23
2)(16/5+13/6)-(8/9+1½-6 2/9)=(96/30+65/30)-(8/9+3/2-56/9)=
161/30+69/18=483/90+345/90=828/90=9 28/90