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: 65/126
65/126 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 65 = 5 × 13
- 126 = 2 × 32 × 7
- GCF (65; 126) = 1
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