Number Sets

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Across
  1. 4. What we get in order to add fractions
  2. 6. Number set that contains negative 5
  3. 7. Fractions fall into this number set
Down
  1. 1. Fraction with numerator>denominator
  2. 2. Zero falls into this number set
  3. 3. Fraction that has integer in front of a fraction
  4. 5. Only positive numbers (not zero) belong here