Odpowiedzi

2010-04-15T14:31:30+02:00
8+(-3 1/5)+(-1 1/2)=
8-3,2-1,5=
3,3



(-2 1/3)+7+(-1 1/7)=
-7/3+7-8/7=
3¹¹/₂₁



-3 2/5-5 1/5=
-3,4-5,2=
-8,6



-2 1/2 -(-5 1/2)=
-2,5+5,5=
3



2/5 - (-2/3)=
⅖+⅔=
6/15+10/15=
16/15=
1¹/₁₅



-5/8-(-1/4)=
-⅝+¼=
-⅝+²/₈=
-⅜