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: 7/14
- The prime factorizations of the numerator and denominator:
- 7 is a prime number.
- 14 = 2 × 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 (7; 14) = 7
7/14 = (7 ÷ 7)/(14 ÷ 7) = 1/2
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
7/14 = 7/(2 × 7) = (7 ÷ 7)/((2 × 7) ÷ 7) = 1/2
The fraction: 12/16
- 12 = 22 × 3
- 16 = 24
- GCF (12; 16) = 22 = 4
12/16 = (12 ÷ 4)/(16 ÷ 4) = 3/4
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
12/16 = (22 × 3)/24 = ((22 × 3) ÷ 22)/(24 ÷ 22) = 3/4