Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
155,555,555,583/700,000,000,014
- The integer number above the bar is called numerator: 155,555,555,583
- The integer number below the bar is called denominator: 700,000,000,014
- 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 = 155,555,555,583 ÷ 700,000,000,014
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:
155,555,555,583 = 3 × 17 × 389 × 2,371 × 3,307
155,555,555,583 is a composite number.
Written with exponents:
700,000,000,014 = 2 × 3 × 7 × 7 × 1,543 × 1,543,067 = 2 × 3 × 72 × 1,543 × 1,543,067
700,000,000,014 is a composite number.
155,555,555,583/700,000,000,014 =
(155,555,555,583 ÷ 3) / (700,000,000,014 ÷ 3) =
51,851,851,861/233,333,333,338
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.
155,555,555,583/700,000,000,014 =
(3 × 17 × 389 × 2,371 × 3,307)/(2 × 3 × 72 × 1,543 × 1,543,067) =
((3 × 17 × 389 × 2,371 × 3,307) ÷ 3) / ((2 × 3 × 72 × 1,543 × 1,543,067) ÷ 3) =
(17 × 389 × 2,371 × 3,307)/(2 × 72 × 1,543 × 1,543,067) =
51,851,851,861/233,333,333,338
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
51,851,851,861/233,333,333,338 =
51,851,851,861 ÷ 233,333,333,338 =
0.222222222257 ≈
0.22