Positive rational numbers are understood as equivalent quantities that can be represented by fractions, decimals, or percents; comparisons may be justified by locating values on a number line, using benchmarks such as 0, 1, and 1/2, or rewriting them in a common representation. Ordering requires attention to place value and magnitude rather than comparing numerators or denominators in isolation, and is limited to positive values rather than irrational or more advanced symbolic cases.
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