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: - 2/4
- The prime factorizations of the numerator and denominator:
- 2 is a prime number.
- 4 = 22
- 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 (2; 4) = 2
- 2/4 = - (2 ÷ 2)/(4 ÷ 2) = - 1/2
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 2/4 = - 2/22 = - (2 ÷ 2)/(22 ÷ 2) = - 1/2
The fraction: - 7/14
- 7 is a prime number.
- 14 = 2 × 7
- 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 fractions are equal.
This is one of the simplest cases when comparing two fractions.
Not only are the numerators of the fractions equal but their denominators are also equal.
::: The operation of comparing fractions :::
The final answer: