What is 8/2 of 7?

How to calculate 8/2 of 7?

1. Multiply the whole number by the numerator of the fraction: 7 × 8 = 56
2. Divide this result by denominator of the fraction: 56/2 = 28
3. Simplify by dividing both the numerator and denominator by their GCD (2):
   • 56/2 = 28
   • 2/2 = 1
4. Which gives: 28/1

How does it work?

The principle behind finding a fraction of a number, such as 8/2 of 7, is rooted in the method of cross-multiplication.

Consider the following proportion: $\frac{8}{2}=\frac{x}{7}$ (where x represents 8/2 of 7)

1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: $8\times 7=2x$
2. Which gives: $56=2x$
3. Divide both sides by 2 to isolate x: $\frac{56}{2}=\frac{2x}{2}$
4. Which gives the result: $\frac{56}{2}=x$ (or $\frac{28}{1}=x$)

Thus, 8/2 of 7 is equal to 28/1 (or 28 in its decimal form).