Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
247,916,666,652/349,999,999,972
- The integer number above the bar is called numerator: 247,916,666,652
- The integer number below the bar is called denominator: 349,999,999,972
- 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 = 247,916,666,652 ÷ 349,999,999,972
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:
247,916,666,652 = 2 × 2 × 3 × 67 × 308,354,063 = 22 × 3 × 67 × 308,354,063
247,916,666,652 is a composite number.
Written with exponents:
349,999,999,972 = 2 × 2 × 7 × 12,499,999,999 = 22 × 7 × 12,499,999,999
349,999,999,972 is a composite number.
247,916,666,652/349,999,999,972 =
(247,916,666,652 ÷ 4) / (349,999,999,972 ÷ 4) =
61,979,166,663/87,499,999,993
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.
247,916,666,652/349,999,999,972 =
(22 × 3 × 67 × 308,354,063)/(22 × 7 × 12,499,999,999) =
((22 × 3 × 67 × 308,354,063) ÷ 22) / ((22 × 7 × 12,499,999,999) ÷ 22) =
(3 × 67 × 308,354,063)/(7 × 12,499,999,999) =
61,979,166,663/87,499,999,993
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
61,979,166,663/87,499,999,993 =
61,979,166,663 ÷ 87,499,999,993 =
0.708333333348 ≈
0.71