2. Write the number as an improper fraction.
- 3.14814814816 can be written as an improper fraction.
- An improper fraction = the numerator is larger than or equal to the denominator..
Write down the number divided by 1, as a fraction:
3.14814814816 = 3.14814814816/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 100,000,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
3.14814814816/1 =
(3.14814814816 × 100,000,000,000)/(1 × 100,000,000,000) =
314,814,814,816/100,000,000,000
3. Reduce (simplify) the fraction above:
314,814,814,816/100,000,000,000
to the lowest terms, to its simplest equivalent form, irreducible.
To reduce a fraction to the lowest terms divide the numerator and denominator by their greatest (highest) common factor (divisor), GCF.
Factor the numerator and denominator (prime factorization).
314,814,814,816 = 25 × 163 × 2,111 × 28,591
100,000,000,000 = 211 × 511
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (25 × 163 × 2,111 × 28,591; 211 × 511) = 25
Divide both the numerator and the denominator by their GCF.
314,814,814,816/100,000,000,000 =
(25 × 163 × 2,111 × 28,591)/(211 × 511) =
((25 × 163 × 2,111 × 28,591) ÷ 25) / ((211 × 511) ÷ 25) =
(163 × 2,111 × 28,591)/(26 × 511) =
9,837,962,963/3,125,000,000
4. The fraction is an improper one, rewrite it as a mixed number (mixed fraction):
- A mixed number = an integer number and a proper fraction, of the same sign.
- Example 1: 2 1/5; Example 2: - 1 3/7.
- A proper fraction = the numerator is smaller than the denominator.
9,837,962,963 ÷ 3,125,000,000 = 3, remainder = 462,962,963 ⇒
9,837,962,963 = 3 × 3,125,000,000 + 462,962,963 ⇒
9,837,962,963/3,125,000,000 =
(3 × 3,125,000,000 + 462,962,963) / 3,125,000,000 =
(3 × 3,125,000,000) / 3,125,000,000 + 462,962,963/3,125,000,000 =
3 + 462,962,963/3,125,000,000 =
3 462,962,963/3,125,000,000