Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
969,696,930/8,000,000,004
- The integer number above the bar is called numerator: 969,696,930
- The integer number below the bar is called denominator: 8,000,000,004
- 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 = 969,696,930 ÷ 8,000,000,004
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:
969,696,930 = 2 × 3 × 5 × 32,323,231
969,696,930 is a composite number.
Written with exponents:
8,000,000,004 = 2 × 2 × 3 × 666,666,667 = 22 × 3 × 666,666,667
8,000,000,004 is a composite number.
969,696,930/8,000,000,004 =
(969,696,930 ÷ 6) / (8,000,000,004 ÷ 6) =
161,616,155/1,333,333,334
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.
969,696,930/8,000,000,004 =
(2 × 3 × 5 × 32,323,231)/(22 × 3 × 666,666,667) =
((2 × 3 × 5 × 32,323,231) ÷ (2 × 3)) / ((22 × 3 × 666,666,667) ÷ (2 × 3)) =
(5 × 32,323,231)/(2 × 666,666,667) =
161,616,155/1,333,333,334
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
161,616,155/1,333,333,334 =
161,616,155 ÷ 1,333,333,334 =
0.121212116189 ≈
0.12