2. Write the number as an improper fraction.
- 7.33333336 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:
7.33333336 = 7.33333336/1
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.
7.33333336/1 =
(7.33333336 × 100,000,000)/(1 × 100,000,000) =
733,333,336/100,000,000
3. Reduce (simplify) the fraction above:
733,333,336/100,000,000
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).
733,333,336 = 23 × 91,666,667
100,000,000 = 28 × 58
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (23 × 91,666,667; 28 × 58) = 23
Divide both the numerator and the denominator by their GCF.
733,333,336/100,000,000 =
(23 × 91,666,667)/(28 × 58) =
((23 × 91,666,667) ÷ 23) / ((28 × 58) ÷ 23) =
91,666,667/(25 × 58) =
91,666,667/12,500,000
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.
91,666,667 ÷ 12,500,000 = 7, remainder = 4,166,667 ⇒
91,666,667 = 7 × 12,500,000 + 4,166,667 ⇒
91,666,667/12,500,000 =
(7 × 12,500,000 + 4,166,667) / 12,500,000 =
(7 × 12,500,000) / 12,500,000 + 4,166,667/12,500,000 =
7 + 4,166,667/12,500,000 =
7 4,166,667/12,500,000