What is 8/7 of 88?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 8/7 of 88? We'll show you a straightforward method to achieve that.

How to calculate 8/7 of 88?

  1. Multiply the whole number by the numerator of the fraction: 88 × 8 = 704
  2. Divide this result by denominator of the fraction: 704/7 = 100.57142857143

Since 704/7 is an improper fraction, the result could also be expressed as a mixed number: 100 4/7

How does it work?

The principle behind finding a fraction of a number, such as 8/7 of 88, is rooted in the method of cross-multiplication.

Consider the following proportion: 8 7 = x 88 (where x represents 8/7 of 88)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 8 × 88 = 7 x
  2. Which gives: 704 = 7 x
  3. Divide both sides by 7 to isolate x: 704 7 = 7 x 7
  4. Which gives the result: 704 7 = x

Thus, 8/7 of 88 is equal to 704/7 (or 100.57142857143 in its decimal form).