- 5/13+ (-7/13)=
3/11 +(-8/11)=
- 9/17 + 13/17 =
- 2/5 + (-2/15)=
- 2/5 +3/4=
-11/27+5/18=
-3/11+ (-7/11)=
6/13+(-8/13)=
- 8/17 + 11/17 =
- 1/4 + (- 3/16 ) =
-3/4 +2/5=
- 5/36+5/27 =
3/11 +(-8/11)=
- 9/17 + 13/17 =
- 2/5 + (-2/15)=
- 2/5 +3/4=
-11/27+5/18=
-3/11+ (-7/11)=
6/13+(-8/13)=
- 8/17 + 11/17 =
- 1/4 + (- 3/16 ) =
-3/4 +2/5=
- 5/36+5/27 =
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Answers & Comments
3/11+(-8/11)=3/11-8/11=-5/11
-9/17+13/17=4/17
-2/5+(-2/15)=-2/5-2/15=-6/15-2/15=-8/15
-2/5+3/4=-8/20+15/20=7/20
-11/24+5/18=-22/54+15/54=-7/54
-3/11+(-7/11)=-3/11-7/11=-10/11
6/13+(-8/13)=-2/13
-8/17+11/17=3/17
-1/4+(-3/16)=-1/4-3/16=-4/16-3/16=-7/16
-3/4+2/5=-15/20+8/20=-7/20
-5/36+5/27=-15/108+20/108=5/108