What is 3/2 of 54?

How to calculate 3/2 of 54?

1. Multiply the whole number by the numerator of the fraction: 54 × 3 = 162
2. Divide this result by denominator of the fraction: 162/2 = 81
3. Simplify by dividing both the numerator and denominator by their GCD (2):
   • 162/2 = 81
   • 2/2 = 1
4. Which gives: 81/1

How does it work?

The principle behind finding a fraction of a number, such as 3/2 of 54, is rooted in the method of cross-multiplication.

Consider the following proportion: $\frac{3}{2}=\frac{x}{54}$ (where x represents 3/2 of 54)

1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: $3\times 54=2x$
2. Which gives: $162=2x$
3. Divide both sides by 2 to isolate x: $\frac{162}{2}=\frac{2x}{2}$
4. Which gives the result: $\frac{162}{2}=x$ (or $\frac{81}{1}=x$)

Thus, 3/2 of 54 is equal to 81/1 (or 81 in its decimal form).