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: - 40/10
- The prime factorizations of the numerator and denominator:
- 40 = 23 × 5
- 10 = 2 × 5
- 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; 10) = 2 × 5 = 10
- 40/10 = - (40 ÷ 10)/(10 ÷ 10) = - 4/1 = - 4
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 40/10 = - (23 × 5)/(2 × 5) = - ((23 × 5) ÷ (2 × 5))/((2 × 5) ÷ (2 × 5)) = - 4/1 = - 4
The fraction: - 46/17
- 46/17 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 46 = 2 × 23
- 17 is a prime number.
- GCF (46; 17) = 1