What is 7/8 of 76?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 7/8 of 76? We'll show you a straightforward method to achieve that.

How to calculate 7/8 of 76?

  1. Multiply the whole number by the numerator of the fraction: 76 × 7 = 532
  2. Divide this result by denominator of the fraction: 532/8 = 66.5
  3. Simplify by dividing both the numerator and denominator by their GCD (4):
    • 532/4 = 133
    • 8/4 = 2
  4. Which gives: 133/2

Since 133/2 is an improper fraction, the result could also be expressed as a mixed number: 66 1/2

How does it work?

The principle behind finding a fraction of a number, such as 7/8 of 76, is rooted in the method of cross-multiplication.

Consider the following proportion: 7 8 = x 76 (where x represents 7/8 of 76)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 7 × 76 = 8 x
  2. Which gives: 532 = 8 x
  3. Divide both sides by 8 to isolate x: 532 8 = 8 x 8
  4. Which gives the result: 532 8 = x (or 133 2 = x )

Thus, 7/8 of 76 is equal to 133/2 (or 66.5 in its decimal form).