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Rational or irrational: fractions, decimals and roots

Grade 8 math · Fieldbook Learning

Name ______________________ Date __________

A rational number can be written as a fraction. A root of a number that is not a perfect square, and π, are irrational. Write rational or irrational.

  1. Is 10/7 rational or irrational? Write rational or irrational.
  2. Is √4 rational or irrational? Write rational or irrational.
  3. Is 12/2 rational or irrational? Write rational or irrational.
  4. Is 4/7 rational or irrational? Write rational or irrational.
  5. Is 8/6 rational or irrational? Write rational or irrational.
  6. Is 8/4 rational or irrational? Write rational or irrational.
  7. Is √54 rational or irrational? Write rational or irrational.
  8. Is √10 rational or irrational? Write rational or irrational.
  9. Is 2π rational or irrational? Write rational or irrational.
  10. Is √100 rational or irrational? Write rational or irrational.
  11. Is 9.35 rational or irrational? Write rational or irrational.
  12. Is π rational or irrational? Write rational or irrational.
  13. Is 6/11 rational or irrational? Write rational or irrational.
  14. Is 1.29 rational or irrational? Write rational or irrational.
  15. Is 7.81 rational or irrational? Write rational or irrational.
  16. Is π + 1 rational or irrational? Write rational or irrational.
  17. Is 6/2 rational or irrational? Write rational or irrational.
  18. Is √9 rational or irrational? Write rational or irrational.
  19. Is √361 rational or irrational? Write rational or irrational.
  20. Is 4.69 rational or irrational? Write rational or irrational.
More free practice: fieldbooklearning.com/practice/grade-8/rational-or-irrational-fractions-decimals-and-roots/

Answer key: Rational or irrational: fractions, decimals and roots

  1. rational
  2. rational
  3. rational
  4. rational
  5. rational
  6. rational
  7. irrational
  8. irrational
  9. irrational
  10. rational
  11. rational
  12. irrational
  13. rational
  14. rational
  15. rational
  16. irrational
  17. rational
  18. rational
  19. rational
  20. rational