Convert to fraction: Convert the percentage to a fraction by placing 15.5 over 100; 15.5%=10015.5.
Simplify fraction: Simplify the fraction by multiplying both the numerator and the denominator by 10 to eliminate the decimal point; 15.5×10=155 and 100×10=1000, so 10015.5=1000155.
Reduce fraction: Reduce the fraction by finding the greatest common divisor (GCD) of 155 and 1000. The GCD is 5. Divide both the numerator and the denominator by 5; 155÷5=31 and 1000÷5=200. So, 1000155 simplifies to 20031.
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