What is 8/8 of 91?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 8/8 of 91? We'll show you a straightforward method to achieve that.

How to calculate 8/8 of 91?

  1. Multiply the whole number by the numerator of the fraction: 91 × 8 = 728
  2. Divide this result by denominator of the fraction: 728/8 = 91
  3. Simplify by dividing both the numerator and denominator by their GCD (8):
    • 728/8 = 91
    • 8/8 = 1
  4. Which gives: 91/1

How does it work?

The principle behind finding a fraction of a number, such as 8/8 of 91, is rooted in the method of cross-multiplication.

Consider the following proportion: 8 8 = x 91 (where x represents 8/8 of 91)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 8 × 91 = 8 x
  2. Which gives: 728 = 8 x
  3. Divide both sides by 8 to isolate x: 728 8 = 8 x 8
  4. Which gives the result: 728 8 = x (or 91 1 = x )

Thus, 8/8 of 91 is equal to 91/1 (or 91 in its decimal form).