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: 40/38
- The prime factorizations of the numerator and denominator:
- 40 = 23 × 5
- 38 = 2 × 19
- 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 (40; 38) = 2
40/38 = (40 ÷ 2)/(38 ÷ 2) = 20/19
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
40/38 = (23 × 5)/(2 × 19) = ((23 × 5) ÷ 2)/((2 × 19) ÷ 2) = 20/19
The fraction: 48/48
48/48 = (48 ÷ 48)/(48 ÷ 48) = 1/1 = 1