What is 2/8 of 55?

How to calculate 2/8 of 55?

1. Multiply the whole number by the numerator of the fraction: 55 × 2 = 110
2. Divide this result by denominator of the fraction: 110/8 = 13.75
3. Simplify by dividing both the numerator and denominator by their GCD (2):
   • 110/2 = 55
   • 8/2 = 4
4. Which gives: 55/4

Since 55/4 is an improper fraction, the result could also be expressed as a mixed number: 13 3/4

How does it work?

The principle behind finding a fraction of a number, such as 2/8 of 55, is rooted in the method of cross-multiplication.

Consider the following proportion: $\frac{2}{8}=\frac{x}{55}$ (where x represents 2/8 of 55)

1. Using the cross-multiplication method, multiply both numerators by their opposite denominators: $2\times 55=8x$
2. Which gives: $110=8x$
3. Divide both sides by 8 to isolate x: $\frac{110}{8}=\frac{8x}{8}$
4. Which gives the result: $\frac{110}{8}=x$ (or $\frac{55}{4}=x$)

Thus, 2/8 of 55 is equal to 55/4 (or 13.75 in its decimal form).