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: 102/47
102/47 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 102 = 2 × 3 × 17
- 47 is a prime number.
- GCF (102; 47) = 1
The fraction: 110/55
- The prime factorizations of the numerator and denominator:
- 110 = 2 × 5 × 11
- 55 = 5 × 11
- 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 (110; 55) = 5 × 11 = 55
110/55 = (110 ÷ 55)/(55 ÷ 55) = 2/1 = 2
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
110/55 = (2 × 5 × 11)/(5 × 11) = ((2 × 5 × 11) ÷ (5 × 11))/((5 × 11) ÷ (5 × 11)) = 2/1 = 2