What is 3/7 of 34?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 3/7 of 34? We'll show you a straightforward method to achieve that.
How to calculate 3/7 of 34?
- Multiply the whole number by the numerator of the fraction: 34 × 3 = 102
- Divide this result by denominator of the fraction: 102/7 = 14.571428571429
Since 102/7 is an improper fraction, the result could also be expressed as a mixed number: 14 4/7
How does it work?
The principle behind finding a fraction of a number, such as 3/7 of 34, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 3/7 of 34)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 7 to isolate x:
- Which gives the result:
Thus, 3/7 of 34 is equal to 102/7 (or 14.571428571429 in its decimal form).