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3/12 + 7/12=
10/12
Oops!
Okay!
4/12 + 2/12=
6/12
Oops!
Okay!
10/12 - 5/12=
2 5/12
Oops!
Okay!
3/6 + 1/6=
5 4/6
Oops!
Okay!
4/5 - 1/5=
3/5
Oops!
Okay!
4/5 - 2/5=
2/5
Oops!
Okay!
11/12 - 10/12=
1/12
Oops!
Okay!
1/3 + 1/3=
2/3
Oops!
Okay!
5/8 - 2/8=
3/8
Oops!
Okay!
1/4 + 2/4=
3/4
Oops!
Okay!
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