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Irrational Numbers

Irrational Numbers. Unit 1.07. Rational Number: A Rational Number is a number that CAN be written as a fraction. Example: Which of the following are rational numbers? (Write the rational numbers in the  circle and those that are not rational in the  circle) A) B) C)

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Irrational Numbers

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  1. Irrational Numbers Unit 1.07

  2. Rational Number: A Rational Number is a number that CAN be written as a fraction. Example: Which of the following are rational numbers? (Write the rational numbers in the  circle and those that are not rational in the  circle) A) B) C) D) E) F) Vocabulary π

  3. Irrational Number: An Irrational Number is a number that CANNOT be written as a fraction. Example: Which of the following are irrational numbers? (Write the irrational numbers in the  circle and those that are not irrational in the  circle) A) B) C) D) E) F) π Vocabulary

  4. Then it IS… ? Irrational! If it’s NOT Rational…

  5. Finger Flip! ⅗ Rational or Irrational?

  6. Finger Flip! Rational or Irrational?

  7. Finger Flip! Rational or Irrational?

  8. Finger Flip! Rational or Irrational?

  9. Finger Flip! Rational or Irrational?

  10. Finger Flip! Rational or Irrational?

  11. Finger Flip! Rational or Irrational?

  12. Finger Flip! Rational or Irrational?

  13. Finger Flip! π Rational or Irrational?

  14. Finger Flip! Rational or Irrational?

  15. Finger Flip! Rational or Irrational?

  16. How do you write a repeating decimal as a fraction?

  17. Writing a rational number as a fraction: You can write any rational number (with repeating digits) as a fraction by following these 4 steps. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating digits. Step 3: Subtract & Divide. Step 4: Reduce (if possible). How do I … ?

  18. Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible). Example #1:

  19. Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible). Example #2:

  20. Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible). Let’s Practice! #1

  21. Let’s Practice! #2 Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible).

  22. Let’s Practice! #3 Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible).

  23. Let’s Practice! #4 Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible).

  24. Let’s Practice! #5 Write the rational number as a fraction. Step 1: Set the given number equal to n. Step 2: Multiply both sides by the power of 10 that equals the number of repeating decimals. Step 3: Subtract & Divide. Step 4: Reduce (if possible).

  25. Homework Time!  Is This Rational? WS

  26. What if there are Non-repeating digits? 1.07 day 2

  27. Writing a rational number as a fractionwhen not all digits are repeating: You can write any rational number (with repeating & non-repeating digits) as a fraction by following these 6 steps. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible). How do I … ?

  28. Write the rational number as a fraction. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible). Example #3:

  29. Write the rational number as a fraction. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible). Example #4:

  30. Let’s Practice! #6 Write the rational number as a fraction. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible).

  31. Let’s Practice! #7 Write the rational number as a fraction. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible).

  32. Let’s Practice! #8 Write the rational number as a fraction. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible).

  33. Let’s Practice! #9 Write the rational number as a fraction. Step 1: Move the decimal point behind the last repeating digit. Step 2: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 3: Move the decimal point in front of the 1st repeating digit. Step 4: Multiply by the power of 10 that equals the number of places you moved the decimal point. Step 5: Subtract & Divide. Step 6: Reduce (if possible).

  34. Homework Time!  RationalConversion!WS

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