What is 3/4 of 61?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 3/4 of 61? We'll show you a straightforward method to achieve that.
How to calculate 3/4 of 61?
- Multiply the whole number by the numerator of the fraction: 61 × 3 = 183
- Divide this result by denominator of the fraction: 183/4 = 45.75
Since 183/4 is an improper fraction, the result could also be expressed as a mixed number: 45 3/4
How does it work?
The principle behind finding a fraction of a number, such as 3/4 of 61, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 3/4 of 61)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 4 to isolate x:
- Which gives the result:
Thus, 3/4 of 61 is equal to 183/4 (or 45.75 in its decimal form).