2. Write the number as a proper fraction.
- 0.6368 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:
0.6368 = 0.6368/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 10,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
0.6368/1 =
(0.6368 × 10,000)/(1 × 10,000) =
6,368/10,000
3. Reduce (simplify) the fraction above:
6,368/10,000
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).
6,368 = 25 × 199
10,000 = 24 × 54
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (25 × 199; 24 × 54) = 24
Divide both the numerator and the denominator by their GCF.
6,368/10,000 =
(25 × 199)/(24 × 54) =
((25 × 199) ÷ 24) / ((24 × 54) ÷ 24) =
(2 × 199)/54 =
398/625