What is 1/10 of 54?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 1/10 of 54? We'll show you a straightforward method to achieve that.
How to calculate 1/10 of 54?
- Multiply the whole number by the numerator of the fraction: 54 × 1 = 54
- Divide this result by denominator of the fraction: 54/10 = 5.4
- Simplify by dividing both the numerator and denominator by their GCD (2):
- 54/2 = 27
- 10/2 = 5
- Which gives: 27/5
Since 27/5 is an improper fraction, the result could also be expressed as a mixed number: 5 2/5
How does it work?
The principle behind finding a fraction of a number, such as 1/10 of 54, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 1/10 of 54)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 10 to isolate x:
- Which gives the result: (or )
Thus, 1/10 of 54 is equal to 27/5 (or 5.4 in its decimal form).