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: 206/9
206/9 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 206 = 2 × 103
- 9 = 32
- GCF (206; 9) = 1
The fraction: 209/19
- The prime factorizations of the numerator and denominator:
- 209 = 11 × 19
- 19 is a prime number.
- 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 (209; 19) = 19
209/19 = (209 ÷ 19)/(19 ÷ 19) = 11/1 = 11
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
209/19 = (11 × 19)/19 = ((11 × 19) ÷ 19)/(19 ÷ 19) = 11/1 = 11