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: 38/36
- The prime factorizations of the numerator and denominator:
- 38 = 2 × 19
- 36 = 22 × 32
- 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 (38; 36) = 2
38/36 = (38 ÷ 2)/(36 ÷ 2) = 19/18
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
38/36 = (2 × 19)/(22 × 32) = ((2 × 19) ÷ 2)/((22 × 32) ÷ 2) = 19/18
The fraction: 40/40
40/40 = (40 ÷ 40)/(40 ÷ 40) = 1/1 = 1