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: - 8/35
- 8/35 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 8 = 23
- 35 = 5 × 7
- GCF (8; 35) = 1
The fraction: - 14/42
- The prime factorizations of the numerator and denominator:
- 14 = 2 × 7
- 42 = 2 × 3 × 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 (14; 42) = 2 × 7 = 14
- 14/42 = - (14 ÷ 14)/(42 ÷ 14) = - 1/3
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 14/42 = - (2 × 7)/(2 × 3 × 7) = - ((2 × 7) ÷ (2 × 7))/((2 × 3 × 7) ÷ (2 × 7)) = - 1/3