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: 749/55
749/55 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 749 = 7 × 107
- 55 = 5 × 11
- GCF (749; 55) = 1
The fraction: 756/63
- The prime factorizations of the numerator and denominator:
- 756 = 22 × 33 × 7
- 63 = 32 × 7
- 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 (756; 63) = 32 × 7 = 63
756/63 = (756 ÷ 63)/(63 ÷ 63) = 12/1 = 12
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
756/63 = (22 × 33 × 7)/(32 × 7) = ((22 × 33 × 7) ÷ (32 × 7))/((32 × 7) ÷ (32 × 7)) = 12/1 = 12