Convert to Improper Fraction: Convert the mixed number 421 into an improper fraction. Since 2 (the denominator) times 4 (the whole number) equals 8, and adding the numerator 1 gives us 9, the improper fraction is 29.
Convert Fraction to Decimal: Divide the numerator by the denominator to convert the fraction into a decimal. So, 9 divided by 2 equals 4.5.
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