2. Write the number as a proper fraction.
- 0.222222222225 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:
0.222222222225 = 0.222222222225/1
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.
0.222222222225/1 =
(0.222222222225 × 1,000,000,000,000)/(1 × 1,000,000,000,000) =
222,222,222,225/1,000,000,000,000
3. Reduce (simplify) the fraction above:
222,222,222,225/1,000,000,000,000
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).
222,222,222,225 = 34 × 52 × 172 × 379,721
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 (34 × 52 × 172 × 379,721; 212 × 512) = 52
Divide both the numerator and the denominator by their GCF.
222,222,222,225/1,000,000,000,000 =
(34 × 52 × 172 × 379,721)/(212 × 512) =
((34 × 52 × 172 × 379,721) ÷ 52) / ((212 × 512) ÷ 52) =
(34 × 172 × 379,721)/(212 × 510) =
8,888,888,889/40,000,000,000