What is 1/7 of 5?

How to calculate 1/7 of 5?

1. Multiply the whole number by the numerator of the fraction: 5 × 1 = 5
2. Divide this result by denominator of the fraction: 5/7 = 0.71428571428571

How does it work?

The principle behind finding a fraction of a number, such as 1/7 of 5, is rooted in the method of cross-multiplication.

Consider the following proportion: $\frac{1}{7}=\frac{x}{5}$ (where x represents 1/7 of 5)

1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: $1\times 5=7x$
2. Which gives: $5=7x$
3. Divide both sides by 7 to isolate x: $\frac{5}{7}=\frac{7x}{7}$
4. Which gives the result: $\frac{5}{7}=x$

Thus, 1/7 of 5 is equal to 5/7 (or 0.71428571428571 in its decimal form).