2. Write the number as a proper fraction.
- 0.17171718 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:
0.17171718 = 0.17171718/1
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.
- 1 followed by as many 0-s as the number of digits after the decimal point.
0.17171718/1 =
(0.17171718 × 100,000,000)/(1 × 100,000,000) =
17,171,718/100,000,000
3. Reduce (simplify) the fraction above:
17,171,718/100,000,000
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).
17,171,718 = 2 × 3 × 157 × 18,229
100,000,000 = 28 × 58
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (2 × 3 × 157 × 18,229; 28 × 58) = 2
Divide both the numerator and the denominator by their GCF.
17,171,718/100,000,000 =
(2 × 3 × 157 × 18,229)/(28 × 58) =
((2 × 3 × 157 × 18,229) ÷ 2) / ((28 × 58) ÷ 2) =
(3 × 157 × 18,229)/(27 × 58) =
8,585,859/50,000,000