Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,750/30,000,000,095
- The integer number above the bar is called numerator: 16,666,666,750
- The integer number below the bar is called denominator: 30,000,000,095
- The fraction bar means that the numerator is divided by the denominator.
- To get the fraction's value divide the numerator by the denominator:
The value = 16,666,666,750 ÷ 30,000,000,095
To reduce a fraction to the lowest terms equivalent: divide the numerator and denominator by their greatest common factor, GCF
To calculate the greatest common factor, GCF:
- 1. Factor the numerator and the denominator (into prime factors), build their prime factorizations.
- 2. Multiply all their common prime factors, taken by the lowest exponents.
1. Factor the numerator and the denominator:
To factor a number (into prime factors) - or, in other words, to break it down to prime factors - or, in other words, to build its prime factorization: find the prime numbers that multiply together to get that number.
The prime factorizations:
Written with exponents:
16,666,666,750 = 2 × 5 × 5 × 5 × 66,666,667 = 2 × 53 × 66,666,667
16,666,666,750 is a composite number.
30,000,000,095 = 5 × 13 × 193 × 967 × 2,473
30,000,000,095 is a composite number.
16,666,666,750/30,000,000,095 =
(16,666,666,750 ÷ 5) / (30,000,000,095 ÷ 5) =
3,333,333,350/6,000,000,019
Yet another method to reduce the fraction
To reduce a fraction without calculating the GCF: factor its numerator and denominator, then all the common prime factors are easily identified and crossed out.
16,666,666,750/30,000,000,095 =
(2 × 53 × 66,666,667)/(5 × 13 × 193 × 967 × 2,473) =
((2 × 53 × 66,666,667) ÷ 5) / ((5 × 13 × 193 × 967 × 2,473) ÷ 5) =
(2 × 52 × 66,666,667)/(13 × 193 × 967 × 2,473) =
3,333,333,350/6,000,000,019
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
3,333,333,350/6,000,000,019 =
3,333,333,350 ÷ 6,000,000,019 =
0.555555556574 ≈
0.56