2. Write the number as a proper fraction.
- 0.769236 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:
0.769236 = 0.769236/1
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.
0.769236/1 =
(0.769236 × 1,000,000)/(1 × 1,000,000) =
769,236/1,000,000
3. Reduce (simplify) the fraction above:
769,236/1,000,000
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).
769,236 = 22 × 3 × 13 × 4,931
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 × 3 × 13 × 4,931; 26 × 56) = 22
Divide both the numerator and the denominator by their GCF.
769,236/1,000,000 =
(22 × 3 × 13 × 4,931)/(26 × 56) =
((22 × 3 × 13 × 4,931) ÷ 22) / ((26 × 56) ÷ 22) =
(3 × 13 × 4,931)/(24 × 56) =
192,309/250,000