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: 305/147
305/147 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 305 = 5 × 61
- 147 = 3 × 72
- GCF (305; 147) = 1
The fraction: 308/154
- The prime factorizations of the numerator and denominator:
- 308 = 22 × 7 × 11
- 154 = 2 × 7 × 11
- 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 (308; 154) = 2 × 7 × 11 = 154
308/154 = (308 ÷ 154)/(154 ÷ 154) = 2/1 = 2
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
308/154 = (22 × 7 × 11)/(2 × 7 × 11) = ((22 × 7 × 11) ÷ (2 × 7 × 11))/((2 × 7 × 11) ÷ (2 × 7 × 11)) = 2/1 = 2