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Express each of the following as a recur...

Express each of the following as a recurring decimal :
`22/7`

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The correct Answer is:
To express \( \frac{22}{7} \) as a recurring decimal, we will perform long division. Here are the steps: ### Step-by-Step Solution: 1. **Set Up the Division**: We want to divide 22 by 7. Write it as \( 22 \div 7 \). 2. **Divide**: - 7 goes into 22 three times (since \( 7 \times 3 = 21 \)). - Write down 3 as the whole number part of the quotient. 3. **Subtract**: - Subtract 21 from 22, which gives us a remainder of 1. - Write this as \( 22 - 21 = 1 \). 4. **Bring Down a Zero**: - Since we have a remainder, we bring down a 0, making it 10. 5. **Divide Again**: - 7 goes into 10 one time (since \( 7 \times 1 = 7 \)). - Write down 1 in the decimal part of the quotient. 6. **Subtract Again**: - Subtract 7 from 10, which gives us a remainder of 3. - Write this as \( 10 - 7 = 3 \). 7. **Bring Down Another Zero**: - Bring down another 0, making it 30. 8. **Divide Again**: - 7 goes into 30 four times (since \( 7 \times 4 = 28 \)). - Write down 4 in the decimal part. 9. **Subtract Again**: - Subtract 28 from 30, which gives us a remainder of 2. - Write this as \( 30 - 28 = 2 \). 10. **Bring Down Another Zero**: - Bring down another 0, making it 20. 11. **Divide Again**: - 7 goes into 20 two times (since \( 7 \times 2 = 14 \)). - Write down 2 in the decimal part. 12. **Subtract Again**: - Subtract 14 from 20, which gives us a remainder of 6. - Write this as \( 20 - 14 = 6 \). 13. **Bring Down Another Zero**: - Bring down another 0, making it 60. 14. **Divide Again**: - 7 goes into 60 eight times (since \( 7 \times 8 = 56 \)). - Write down 8 in the decimal part. 15. **Subtract Again**: - Subtract 56 from 60, which gives us a remainder of 4. - Write this as \( 60 - 56 = 4 \). 16. **Bring Down Another Zero**: - Bring down another 0, making it 40. 17. **Divide Again**: - 7 goes into 40 five times (since \( 7 \times 5 = 35 \)). - Write down 5 in the decimal part. 18. **Subtract Again**: - Subtract 35 from 40, which gives us a remainder of 5. - Write this as \( 40 - 35 = 5 \). 19. **Bring Down Another Zero**: - Bring down another 0, making it 50. 20. **Divide Again**: - 7 goes into 50 seven times (since \( 7 \times 7 = 49 \)). - Write down 7 in the decimal part. 21. **Subtract Again**: - Subtract 49 from 50, which gives us a remainder of 1. - Write this as \( 50 - 49 = 1 \). 22. **Notice the Pattern**: - At this point, we see that the remainder has returned to 1, which means the decimal will start repeating from here. 23. **Write the Final Answer**: - The decimal representation of \( \frac{22}{7} \) is \( 3.142857142857... \), which can be expressed as \( 3.142857 \overline{142857} \). ### Final Answer: Thus, \( \frac{22}{7} = 3.142857 \overline{142857} \).
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