2. Write the number as an improper fraction.
- 3.3453456 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:
3.3453456 = 3.3453456/1
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.
- 1 followed by as many 0-s as the number of digits after the decimal point.
3.3453456/1 =
(3.3453456 × 10,000,000)/(1 × 10,000,000) =
33,453,456/10,000,000
3. Reduce (simplify) the fraction above:
33,453,456/10,000,000
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).
33,453,456 = 24 × 3 × 709 × 983
10,000,000 = 27 × 57
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (24 × 3 × 709 × 983; 27 × 57) = 24
Divide both the numerator and the denominator by their GCF.
33,453,456/10,000,000 =
(24 × 3 × 709 × 983)/(27 × 57) =
((24 × 3 × 709 × 983) ÷ 24) / ((27 × 57) ÷ 24) =
(3 × 709 × 983)/(23 × 57) =
2,090,841/625,000
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.
2,090,841 ÷ 625,000 = 3, remainder = 215,841 ⇒
2,090,841 = 3 × 625,000 + 215,841 ⇒
2,090,841/625,000 =
(3 × 625,000 + 215,841) / 625,000 =
(3 × 625,000) / 625,000 + 215,841/625,000 =
3 + 215,841/625,000 =
3 215,841/625,000