Rational number

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123456789
Across
  1. 5. what should be added to (-3)/5 to get additive identity?
  2. 6. The sum of additive identity and 2/7
  3. 8. Subtract additive inverse of (-5)/6 from multiplicative inverse of 5/7
  4. 9. The product of additive inverse of (-7)/8and additive inverse of -1
Down
  1. 1. multiplicative inverse of -7
  2. 2. Additive inverse 4/5 and 15/3
  3. 3. The negative rational number whose reciprocal is the number itself.
  4. 4. The rational number whose multiplicative inverse does not exist
  5. 5. Rational number between 2/11 and 4/11 with same denominator
  6. 7. sum of additive identity and multiplicative identity