2. Write the number as a proper fraction.
- 0.555555555556 can be written as a proper fraction.
- A proper fraction = the numerator is smaller than the denominator..
Write down the number divided by 1, as a fraction:
0.555555555556 = 0.555555555556/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 1,000,000,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
0.555555555556/1 =
(0.555555555556 × 1,000,000,000,000)/(1 × 1,000,000,000,000) =
555,555,555,556/1,000,000,000,000
3. Reduce (simplify) the fraction above:
555,555,555,556/1,000,000,000,000
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).
555,555,555,556 = 22 × 23 × 6,038,647,343
1,000,000,000,000 = 212 × 512
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (22 × 23 × 6,038,647,343; 212 × 512) = 22
Divide both the numerator and the denominator by their GCF.
555,555,555,556/1,000,000,000,000 =
(22 × 23 × 6,038,647,343)/(212 × 512) =
((22 × 23 × 6,038,647,343) ÷ 22) / ((212 × 512) ÷ 22) =
(23 × 6,038,647,343)/(210 × 512) =
138,888,888,889/250,000,000,000