Step 1: Start with the fraction 87/64.

Step 2: To convert a fraction into a percentage, divide the numerator by the denominator.

87 ÷ 64 = 1.3594

Step 3: Multiply the result by 100 to get the percentage.

1.3594 × 100 = 135.94%

Final Answer: 87/64 as a percentage is 135.94%.