Simplify the operation
Reduce (simplify) the fractions to their lowest terms equivalents:
- To reduce a fraction to the lowest terms equivalent: divide both the numerator and denominator by their greatest common factor, GCF.
The fraction: 206/47
206/47 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 206 = 2 × 103
- 47 is a prime number.
- GCF (206; 47) = 1
The fraction: 216/54
- The prime factorizations of the numerator and denominator:
- 216 = 23 × 33
- 54 = 2 × 33
- Multiply all the common prime factors: if there are repeating prime factors we only take them once, and only the ones having the lowest exponent (the lowest powers).
- GCF (216; 54) = 2 × 33 = 54
216/54 = (216 ÷ 54)/(54 ÷ 54) = 4/1 = 4
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
216/54 = (23 × 33)/(2 × 33) = ((23 × 33) ÷ (2 × 33))/((2 × 33) ÷ (2 × 33)) = 4/1 = 4