Converting 90% to Its Decimal and Fractional Equivalents

The solution involves converting 90% to a fraction:

• Step 1: Write 90% as a fraction over 100: $\frac{90}{100}$.
• Step 2: Simplify the fraction $\frac{90}{100}$:
  • Find the greatest common divisor (GCD) of 90 and 100. The GCD is 10.
  • Divide both the numerator and the denominator by the GCD (10):
  • Numerator: $\frac{90}{10} = 9$
  • Denominator: $\frac{100}{10} = 10$
  • The simplified fraction is $\frac{9}{10}$.

Therefore, the percentage 90% is equal to the fraction $\frac{9}{10}$.