What is 2/1 of 55?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 2/1 of 55? We'll show you a straightforward method to achieve that.

How to calculate 2/1 of 55?

  1. Multiply the whole number by the numerator of the fraction: 55 × 2 = 110
  2. Divide this result by denominator of the fraction: 110/1 = 110

How does it work?

The principle behind finding a fraction of a number, such as 2/1 of 55, is rooted in the method of cross-multiplication.

Consider the following proportion: 2 1 = x 55 (where x represents 2/1 of 55)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 2 × 55 = 1 x
  2. Which gives: 110 = 1 x
  3. Divide both sides by 1 to isolate x: 110 1 = 1 x 1
  4. Which gives the result: 110 1 = x

Thus, 2/1 of 55 is equal to 110/1 (or 110 in its decimal form).