Adding Fractions with Like Denominators

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Across
  1. 1. 2/4 + 1/4
  2. 3. 1/6 + 4/6
  3. 5. 1/4 + 1/4
  4. 7. 5/8 + 3/8
  5. 9. 6/9 + 2/9
  6. 10. 8/15 + 4/15
Down
  1. 1. 2/8 + 1/8
  2. 2. 1/5 + 3/5
  3. 4. 1/8 + 5/8
  4. 6. 3/9 + 1/9
  5. 8. 2/12 + 6/12
  6. 9. 2/10 + 6/10