Math calculators

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• Percentage Change Calculator — percent increase or decrease between two values.
• Fraction To Decimal Calculator — divide numerator by denominator with stable rounding.
• Decimal To Fraction Converter — decimals to reduced or unreduced fractions; mixed numbers when |x| > 1.
• Ratio Calculator — check X:Y = A:B with true or false from cross products.
• Average Calculator — Mean, Median, Mode, and Range from pasted number lists.
• Percentage Calculator — 3-in-1 percent formulas for common percentage questions.