What is 2/1 of 55?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 2/1 of 55? We'll show you a straightforward method to achieve that.
How to calculate 2/1 of 55?
- Multiply the whole number by the numerator of the fraction: 55 × 2 = 110
 - Divide this result by denominator of the fraction: 110/1 = 110
 
How does it work?
The principle behind finding a fraction of a number, such as 2/1 of 55, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 2/1 of 55)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
 - Which gives:
 - Divide both sides by 1 to isolate x:
 - Which gives the result:
 
Thus, 2/1 of 55 is equal to 110/1 (or 110 in its decimal form).