Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
10,000,000,003/70,000,000,000
- The integer number above the bar is called numerator: 10,000,000,003
- The integer number below the bar is called denominator: 70,000,000,000
- 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 = 10,000,000,003 ÷ 70,000,000,000
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:
10,000,000,003 = 7 × 1,428,571,429
10,000,000,003 is a composite number.
Written with exponents:
70,000,000,000 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 7 = 210 × 510 × 7
70,000,000,000 is a composite number.
10,000,000,003/70,000,000,000 =
(10,000,000,003 ÷ 7) / (70,000,000,000 ÷ 7) =
1,428,571,429/10,000,000,000
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.
10,000,000,003/70,000,000,000 =
(7 × 1,428,571,429)/(210 × 510 × 7) =
((7 × 1,428,571,429) ÷ 7) / ((210 × 510 × 7) ÷ 7) =
1,428,571,429/(210 × 510) =
1,428,571,429/10,000,000,000
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
1,428,571,429/10,000,000,000 =
1,428,571,429 ÷ 10,000,000,000 =
0.1428571429 ≈
0.14