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: 6/18
- The prime factorizations of the numerator and denominator:
- 6 = 2 × 3
- 18 = 2 × 32
- 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 (6; 18) = 2 × 3 = 6
6/18 = (6 ÷ 6)/(18 ÷ 6) = 1/3
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
6/18 = (2 × 3)/(2 × 32) = ((2 × 3) ÷ (2 × 3))/((2 × 32) ÷ (2 × 3)) = 1/3
The fraction: 16/26
- 16 = 24
- 26 = 2 × 13
- GCF (16; 26) = 2
16/26 = (16 ÷ 2)/(26 ÷ 2) = 8/13
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
16/26 = 24/(2 × 13) = (24 ÷ 2)/((2 × 13) ÷ 2) = 8/13