2. Write the number as an improper fraction.
- 4.24 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:
4.24 = 4.24/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 100.
- 1 followed by as many 0-s as the number of digits after the decimal point.
4.24/1 =
(4.24 × 100)/(1 × 100) =
424/100
3. Reduce (simplify) the fraction above:
424/100
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).
424 = 23 × 53
100 = 22 × 52
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (23 × 53; 22 × 52) = 22
Divide both the numerator and the denominator by their GCF.
424/100 =
(23 × 53)/(22 × 52) =
((23 × 53) ÷ 22) / ((22 × 52) ÷ 22) =
(2 × 53)/52 =
106/25