What is 9/6 of 43?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 9/6 of 43? We'll show you a straightforward method to achieve that.
How to calculate 9/6 of 43?
- Multiply the whole number by the numerator of the fraction: 43 × 9 = 387
- Divide this result by denominator of the fraction: 387/6 = 64.5
- Simplify by dividing both the numerator and denominator by their GCD (3):
- 387/3 = 129
- 6/3 = 2
- Which gives: 129/2
Since 129/2 is an improper fraction, the result could also be expressed as a mixed number: 64 1/2
How does it work?
The principle behind finding a fraction of a number, such as 9/6 of 43, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 9/6 of 43)
- 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, 9/6 of 43 is equal to 129/2 (or 64.5 in its decimal form).