What is 5/2 of 47?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 5/2 of 47? We'll show you a straightforward method to achieve that.

How to calculate 5/2 of 47?

  1. Multiply the whole number by the numerator of the fraction: 47 × 5 = 235
  2. Divide this result by denominator of the fraction: 235/2 = 117.5

Since 235/2 is an improper fraction, the result could also be expressed as a mixed number: 117 1/2

How does it work?

The principle behind finding a fraction of a number, such as 5/2 of 47, is rooted in the method of cross-multiplication.

Consider the following proportion: 5 2 = x 47 (where x represents 5/2 of 47)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 5 × 47 = 2 x
  2. Which gives: 235 = 2 x
  3. Divide both sides by 2 to isolate x: 235 2 = 2 x 2
  4. Which gives the result: 235 2 = x

Thus, 5/2 of 47 is equal to 235/2 (or 117.5 in its decimal form).