What is 4/6 of 84?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 4/6 of 84? We'll show you a straightforward method to achieve that.

How to calculate 4/6 of 84?

  1. Multiply the whole number by the numerator of the fraction: 84 × 4 = 336
  2. Divide this result by denominator of the fraction: 336/6 = 56
  3. Simplify by dividing both the numerator and denominator by their GCD (6):
    • 336/6 = 56
    • 6/6 = 1
  4. Which gives: 56/1

How does it work?

The principle behind finding a fraction of a number, such as 4/6 of 84, is rooted in the method of cross-multiplication.

Consider the following proportion: 4 6 = x 84 (where x represents 4/6 of 84)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 4 × 84 = 6 x
  2. Which gives: 336 = 6 x
  3. Divide both sides by 6 to isolate x: 336 6 = 6 x 6
  4. Which gives the result: 336 6 = x (or 56 1 = x )

Thus, 4/6 of 84 is equal to 56/1 (or 56 in its decimal form).