What is 2/7 of 54?

How to calculate 2/7 of 54?

1. Multiply the whole number by the numerator of the fraction: 54 × 2 = 108
2. Divide this result by denominator of the fraction: 108/7 = 15.428571428571

Since 108/7 is an improper fraction, the result could also be expressed as a mixed number: 15 3/7

How does it work?

The principle behind finding a fraction of a number, such as 2/7 of 54, is rooted in the method of cross-multiplication.

Consider the following proportion: $\frac{2}{7}=\frac{x}{54}$ (where x represents 2/7 of 54)

1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: $2\times 54=7x$
2. Which gives: $108=7x$
3. Divide both sides by 7 to isolate x: $\frac{108}{7}=\frac{7x}{7}$
4. Which gives the result: $\frac{108}{7}=x$

Thus, 2/7 of 54 is equal to 108/7 (or 15.428571428571 in its decimal form).