Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
155,555,555,562/700,000,000,006
- The integer number above the bar is called numerator: 155,555,555,562
- The integer number below the bar is called denominator: 700,000,000,006
- 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 = 155,555,555,562 ÷ 700,000,000,006
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:
155,555,555,562 = 2 × 3 × 3 × 11 × 785,634,119 = 2 × 32 × 11 × 785,634,119
155,555,555,562 is a composite number.
700,000,000,006 = 2 × 191 × 2,729 × 671,477
700,000,000,006 is a composite number.
155,555,555,562/700,000,000,006 =
(155,555,555,562 ÷ 2) / (700,000,000,006 ÷ 2) =
77,777,777,781/350,000,000,003
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.
155,555,555,562/700,000,000,006 =
(2 × 32 × 11 × 785,634,119)/(2 × 191 × 2,729 × 671,477) =
((2 × 32 × 11 × 785,634,119) ÷ 2) / ((2 × 191 × 2,729 × 671,477) ÷ 2) =
(32 × 11 × 785,634,119)/(191 × 2,729 × 671,477) =
77,777,777,781/350,000,000,003
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
77,777,777,781/350,000,000,003 =
77,777,777,781 ÷ 350,000,000,003 =
0.22222222223 ≈
0.22