2. Write the number as an improper fraction.
- 3.2222222224 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:
3.2222222224 = 3.2222222224/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 10,000,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
3.2222222224/1 =
(3.2222222224 × 10,000,000,000)/(1 × 10,000,000,000) =
32,222,222,224/10,000,000,000
3. Reduce (simplify) the fraction above:
32,222,222,224/10,000,000,000
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).
32,222,222,224 = 24 × 277 × 379 × 19,183
10,000,000,000 = 210 × 510
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (24 × 277 × 379 × 19,183; 210 × 510) = 24
Divide both the numerator and the denominator by their GCF.
32,222,222,224/10,000,000,000 =
(24 × 277 × 379 × 19,183)/(210 × 510) =
((24 × 277 × 379 × 19,183) ÷ 24) / ((210 × 510) ÷ 24) =
(277 × 379 × 19,183)/(26 × 510) =
2,013,888,889/625,000,000
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.
2,013,888,889 ÷ 625,000,000 = 3, remainder = 138,888,889 ⇒
2,013,888,889 = 3 × 625,000,000 + 138,888,889 ⇒
2,013,888,889/625,000,000 =
(3 × 625,000,000 + 138,888,889) / 625,000,000 =
(3 × 625,000,000) / 625,000,000 + 138,888,889/625,000,000 =
3 + 138,888,889/625,000,000 =
3 138,888,889/625,000,000