Math Fractions and whole numbers

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Across
  1. 2. has only 2 factors (1 and itself)
  2. 5. has more than 2 factors
  3. 6. has different numerators and denominators but is equal to the same value
  4. 7. the number of parts of a whole fraction
Down
  1. 1. when both of the denominators are the same
  2. 3. cannot be simplified again or never
  3. 4. the whole number of a fraction