What is 4/8 of 49?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 4/8 of 49? We'll show you a straightforward method to achieve that.

How to calculate 4/8 of 49?

  1. Multiply the whole number by the numerator of the fraction: 49 × 4 = 196
  2. Divide this result by denominator of the fraction: 196/8 = 24.5
  3. Simplify by dividing both the numerator and denominator by their GCD (4):
    • 196/4 = 49
    • 8/4 = 2
  4. Which gives: 49/2

Since 49/2 is an improper fraction, the result could also be expressed as a mixed number: 24 1/2

How does it work?

The principle behind finding a fraction of a number, such as 4/8 of 49, is rooted in the method of cross-multiplication.

Consider the following proportion: 4 8 = x 49 (where x represents 4/8 of 49)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 4 × 49 = 8 x
  2. Which gives: 196 = 8 x
  3. Divide both sides by 8 to isolate x: 196 8 = 8 x 8
  4. Which gives the result: 196 8 = x (or 49 2 = x )

Thus, 4/8 of 49 is equal to 49/2 (or 24.5 in its decimal form).