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: - 207/69
- The prime factorizations of the numerator and denominator:
- 207 = 32 × 23
- 69 = 3 × 23
- 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 (207; 69) = 3 × 23 = 69
- 207/69 = - (207 ÷ 69)/(69 ÷ 69) = - 3/1 = - 3
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 207/69 = - (32 × 23)/(3 × 23) = - ((32 × 23) ÷ (3 × 23))/((3 × 23) ÷ (3 × 23)) = - 3/1 = - 3
The fraction: - 216/72
- 216 = 23 × 33
- 72 = 23 × 32
- GCF (216; 72) = 23 × 32 = 72
- 216/72 = - (216 ÷ 72)/(72 ÷ 72) = - 3/1 = - 3
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 216/72 = - (23 × 33)/(23 × 32) = - ((23 × 33) ÷ (23 × 32))/((23 × 32) ÷ (23 × 32)) = - 3/1 = - 3
The numbers are equal.
This is a simple case of comparing and sorting integer numbers.
The integer numbers are a particular case of those fractions that have a denominator equal to 1.
::: The operation of comparing fractions :::
The final answer: