2. Write the number as an improper fraction.
- 4.611116 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:
4.611116 = 4.611116/1
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.
- 1 followed by as many 0-s as the number of digits after the decimal point.
4.611116/1 =
(4.611116 × 1,000,000)/(1 × 1,000,000) =
4,611,116/1,000,000
3. Reduce (simplify) the fraction above:
4,611,116/1,000,000
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).
4,611,116 = 22 × 29 × 127 × 313
1,000,000 = 26 × 56
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (22 × 29 × 127 × 313; 26 × 56) = 22
Divide both the numerator and the denominator by their GCF.
4,611,116/1,000,000 =
(22 × 29 × 127 × 313)/(26 × 56) =
((22 × 29 × 127 × 313) ÷ 22) / ((26 × 56) ÷ 22) =
(29 × 127 × 313)/(24 × 56) =
1,152,779/250,000
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.
1,152,779 ÷ 250,000 = 4, remainder = 152,779 ⇒
1,152,779 = 4 × 250,000 + 152,779 ⇒
1,152,779/250,000 =
(4 × 250,000 + 152,779) / 250,000 =
(4 × 250,000) / 250,000 + 152,779/250,000 =
4 + 152,779/250,000 =
4 152,779/250,000