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: - 67/134
- The prime factorizations of the numerator and denominator:
- 67 is a prime number.
- 134 = 2 × 67
- 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 (67; 134) = 67
- 67/134 = - (67 ÷ 67)/(134 ÷ 67) = - 1/2
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 67/134 = - 67/(2 × 67) = - (67 ÷ 67)/((2 × 67) ÷ 67) = - 1/2
The fraction: - 76/142
- 76 = 22 × 19
- 142 = 2 × 71
- GCF (76; 142) = 2
- 76/142 = - (76 ÷ 2)/(142 ÷ 2) = - 38/71
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 76/142 = - (22 × 19)/(2 × 71) = - ((22 × 19) ÷ 2)/((2 × 71) ÷ 2) = - 38/71