To express the decimal numbers you provided (0.400 and 0.900) in equivalent forms:
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For 0.400:
- As a fraction: \( \frac{400}{1000} \) or simplified, \( \frac{4}{10} \) or \( \frac{2}{5} \)
- In words: "four hundred thousandths"
- As a percentage: 40%
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For 0.900:
- As a fraction: \( \frac{900}{1000} \) or simplified, \( \frac{9}{10} \)
- In words: "nine hundred thousandths"
- As a percentage: 90%
So, completed, you have:
- Thousandth: 0.400, fraction: \( \frac{400}{1000} \), percentage: 40%
- Thousandth: 0.900, fraction: \( \frac{900}{1000} \), percentage: 90%