Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
247,916,666,704/349,999,999,998
- The integer number above the bar is called numerator: 247,916,666,704
- The integer number below the bar is called denominator: 349,999,999,998
- 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 = 247,916,666,704 ÷ 349,999,999,998
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:
247,916,666,704 = 2 × 2 × 2 × 2 × 7 × 19 × 29 × 1,217 × 3,301 = 24 × 7 × 19 × 29 × 1,217 × 3,301
247,916,666,704 is a composite number.
349,999,999,998 = 2 × 3 × 11 × 17 × 61 × 5,113,819
349,999,999,998 is a composite number.
247,916,666,704/349,999,999,998 =
(247,916,666,704 ÷ 2) / (349,999,999,998 ÷ 2) =
123,958,333,352/174,999,999,999
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.
247,916,666,704/349,999,999,998 =
(24 × 7 × 19 × 29 × 1,217 × 3,301)/(2 × 3 × 11 × 17 × 61 × 5,113,819) =
((24 × 7 × 19 × 29 × 1,217 × 3,301) ÷ 2) / ((2 × 3 × 11 × 17 × 61 × 5,113,819) ÷ 2) =
(23 × 7 × 19 × 29 × 1,217 × 3,301)/(3 × 11 × 17 × 61 × 5,113,819) =
123,958,333,352/174,999,999,999
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
123,958,333,352/174,999,999,999 =
123,958,333,352 ÷ 174,999,999,999 =
0.708333333444 ≈
0.71