Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
125,000,000,002/225,000,000,008
- The integer number above the bar is called numerator: 125,000,000,002
- The integer number below the bar is called denominator: 225,000,000,008
- 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 = 125,000,000,002 ÷ 225,000,000,008
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:
125,000,000,002 = 2 × 13,177 × 4,743,113
125,000,000,002 is a composite number.
Written with exponents:
225,000,000,008 = 2 × 2 × 2 × 7 × 23 × 541 × 322,901 = 23 × 7 × 23 × 541 × 322,901
225,000,000,008 is a composite number.
125,000,000,002/225,000,000,008 =
(125,000,000,002 ÷ 2) / (225,000,000,008 ÷ 2) =
62,500,000,001/112,500,000,004
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.
125,000,000,002/225,000,000,008 =
(2 × 13,177 × 4,743,113)/(23 × 7 × 23 × 541 × 322,901) =
((2 × 13,177 × 4,743,113) ÷ 2) / ((23 × 7 × 23 × 541 × 322,901) ÷ 2) =
(13,177 × 4,743,113)/(22 × 7 × 23 × 541 × 322,901) =
62,500,000,001/112,500,000,004
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
62,500,000,001/112,500,000,004 =
62,500,000,001 ÷ 112,500,000,004 =
0.555555555545 ≈
0.56