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: 620/62
- The prime factorizations of the numerator and denominator:
- 620 = 22 × 5 × 31
- 62 = 2 × 31
- 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; 62) = 2 × 31 = 62
620/62 = (620 ÷ 62)/(62 ÷ 62) = 10/1 = 10
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
620/62 = (22 × 5 × 31)/(2 × 31) = ((22 × 5 × 31) ÷ (2 × 31))/((2 × 31) ÷ (2 × 31)) = 10/1 = 10
The fraction: 625/67
625/67 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 625 = 54
- 67 is a prime number.
- GCF (625; 67) = 1