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: 620/10
- The prime factorizations of the numerator and denominator:
- 620 = 22 × 5 × 31
- 10 = 2 × 5
- 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 (620; 10) = 2 × 5 = 10
620/10 = (620 ÷ 10)/(10 ÷ 10) = 62/1 = 62
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
620/10 = (22 × 5 × 31)/(2 × 5) = ((22 × 5 × 31) ÷ (2 × 5))/((2 × 5) ÷ (2 × 5)) = 62/1 = 62
The fraction: 622/12
- 622 = 2 × 311
- 12 = 22 × 3
- GCF (622; 12) = 2
622/12 = (622 ÷ 2)/(12 ÷ 2) = 311/6
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
622/12 = (2 × 311)/(22 × 3) = ((2 × 311) ÷ 2)/((22 × 3) ÷ 2) = 311/6