What is 3/7 of 98?

Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 3/7 of 98? We'll show you a straightforward method to achieve that.

How to calculate 3/7 of 98?

  1. Multiply the whole number by the numerator of the fraction: 98 × 3 = 294
  2. Divide this result by denominator of the fraction: 294/7 = 42
  3. Simplify by dividing both the numerator and denominator by their GCD (7):
    • 294/7 = 42
    • 7/7 = 1
  4. Which gives: 42/1

How does it work?

The principle behind finding a fraction of a number, such as 3/7 of 98, is rooted in the method of cross-multiplication.

Consider the following proportion: 3 7 = x 98 (where x represents 3/7 of 98)

  1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: 3 × 98 = 7 x
  2. Which gives: 294 = 7 x
  3. Divide both sides by 7 to isolate x: 294 7 = 7 x 7
  4. Which gives the result: 294 7 = x (or 42 1 = x )

Thus, 3/7 of 98 is equal to 42/1 (or 42 in its decimal form).