What is 10/6 of 80?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 10/6 of 80? We'll show you a straightforward method to achieve that.
How to calculate 10/6 of 80?
- Multiply the whole number by the numerator of the fraction: 80 × 10 = 800
- Divide this result by denominator of the fraction: 800/6 = 133.33333333333
- Simplify by dividing both the numerator and denominator by their GCD (2):
- 800/2 = 400
- 6/2 = 3
- Which gives: 400/3
Since 400/3 is an improper fraction, the result could also be expressed as a mixed number: 133 1/3
How does it work?
The principle behind finding a fraction of a number, such as 10/6 of 80, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 10/6 of 80)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 6 to isolate x:
- Which gives the result: (or )
Thus, 10/6 of 80 is equal to 400/3 (or 133.33333333333 in its decimal form).