1/4 + (-2/4)
What is
-1/4
-6/11 - 4/11
-10/11
-5/9 + 4/9
-1/9
1/3 + - 1/3
0
3/7 - (-6/7)
1 2/7
2/5 - 4/5 + 3/5
1/5
-3/8 - (-4/8) - 7/8
-3/4
-2/11 + (-3/11) - 6/11
-1
-1/12 - (-5/12) - 3/12
1/12
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