What is 1/4 of 57?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 1/4 of 57? We'll show you a straightforward method to achieve that.
How to calculate 1/4 of 57?
- Multiply the whole number by the numerator of the fraction: 57 × 1 = 57
- Divide this result by denominator of the fraction: 57/4 = 14.25
Since 57/4 is an improper fraction, the result could also be expressed as a mixed number: 14 1/4
How does it work?
The principle behind finding a fraction of a number, such as 1/4 of 57, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 1/4 of 57)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 4 to isolate x:
- Which gives the result:
Thus, 1/4 of 57 is equal to 57/4 (or 14.25 in its decimal form).