6. Higher Order Thinking Diego compared the differences for \( \frac{10}{10}-\frac{1}{10} \) and \( \frac{100}{100}-\frac{10}{100} \). He said the differences both equal \( \frac{9}{10} \). Is Diego correct? Explain.
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Diego's calculation is incorrect! For \( \frac{10}{10}-\frac{1}{10} \), we simplify \( \frac{10}{10} \) to 1, then \( 1 - \frac{1}{10} = \frac{10}{10} - \frac{1}{10} = \frac{9}{10} \). However, when we look at \( \frac{100}{100}-\frac{10}{100} \), we simplify \( \frac{100}{100} \) also to 1, and \( 1 - \frac{10}{100} = \frac{100}{100} - \frac{10}{100} = \frac{90}{100} = \frac{9}{10} \). While both results equal \( \frac{9}{10} \), Diego seems to mistake the final expression— the initial differences are not identical in context because of their respective denominators! When exploring fractions, it is essential to keep track of the scales involved. A common mistake is to overlook how subtracting fractions with different numbers, such as \( 10 \) and \( 100 \), impacts the overall value. Always align your fractions to the same denominator for clear comparisons!