What is 10/2 of 19?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 10/2 of 19? We'll show you a straightforward method to achieve that.
How to calculate 10/2 of 19?
- Multiply the whole number by the numerator of the fraction: 19 × 10 = 190
- Divide this result by denominator of the fraction: 190/2 = 95
- Simplify by dividing both the numerator and denominator by their GCD (2):
- 190/2 = 95
- 2/2 = 1
- Which gives: 95/1
How does it work?
The principle behind finding a fraction of a number, such as 10/2 of 19, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 10/2 of 19)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 2 to isolate x:
- Which gives the result: (or )
Thus, 10/2 of 19 is equal to 95/1 (or 95 in its decimal form).