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: - 100/100
- 100/100 = - (100 ÷ 100)/(100 ÷ 100) = - 1/1 = - 1
The fraction: - 110/105
- The prime factorizations of the numerator and denominator:
- 110 = 2 × 5 × 11
- 105 = 3 × 5 × 7
- 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; 105) = 5
- 110/105 = - (110 ÷ 5)/(105 ÷ 5) = - 22/21
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 110/105 = - (2 × 5 × 11)/(3 × 5 × 7) = - ((2 × 5 × 11) ÷ 5)/((3 × 5 × 7) ÷ 5) = - 22/21