Adding Fractions to Make a Whole

Solve these problems to test your skills!

1) Solve
4/8+?/8=
2) Solve
1/5+?/5=
3) Solve
3/4+?/4=
4) Solve
2/4+?/4=
5) Solve
1/9+?/9=
6) Solve
1/3+?/3=
7) Solve
2/3+?/3=
8) Solve
1/6+?/6=
9) Solve
4/7+?/7=
10) Solve
7/8+?/8=
11) Solve
4/7+?/7=
12) Solve
1/3+?/3=
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