In the Land of Numerica

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Across
  1. 4. it is a part of a whole
  2. 7. lower number in a fraction
  3. 8. fractions with the same denominator
  4. 9. the upper number in a fraction
Down
  1. 1. increasing order
  2. 2. it means the same
  3. 3. she loved challenges
  4. 5. fractions with different denominators
  5. 6. he loved making things simple
  6. 10. a number that can divide the denominators