Example of least common denominator, Mathematics

Example of Least Common Denominator:

Example:

Add 1/7 +2 /3 + 11/12 + 4/6

Solution:

Step 1:            Find out primes of each denominator.

7 = 7 (already is a prime number)

3 = 3 (already is a prime number)

12 = 2 x 6 = 2 x 2 x 3

6 = 2 x 3

Step 2:            12 is the largest, so begin with

2 x 2 x 3

Comparing this list to another list, the denominators of 3, 12, and 6 could all be calculated from the list, but 7 cannot be, so a 7 must be involved in the list.

2 x 2 x 3 x 7 = 84

Step 3:            Rewrite the equation

1/7 . 12/12 + 2/3 . 28/ 28 + 11/ 12 . 7/7 +  4/6 . 14/14 =

Step 4: Add

12/84 + 56/84 + 77/84 + 56/84 = 201 /84

Posted Date: 2/9/2013 1:12:25 AM | Location : United States







Related Discussions:- Example of least common denominator, Assignment Help, Ask Question on Example of least common denominator, Get Answer, Expert's Help, Example of least common denominator Discussions

Write discussion on Example of least common denominator
Your posts are moderated
Related Questions
Applications of derivatives : At last, let's not forget about our applications of derivatives. Example    Assume that the amount of air in a balloon at any time t is specified

Solve 2 ln (√x) - ln (1 - x ) = 2 . Solution: Firstly get the two logarithms combined in a single logarithm. 2 ln (√x) - ln (x  - l) = 2 ln ((√x) 2 ) ln (1 - x ) = 2

Euler''''s Constant (e) Approximate the number to the one hundredth, one ten-thousandths, and one one-hundred-millionth.

la expresión que permite calcular el radio medio de la órbita de cada planeta es?

how to find eigen value for the given matrix 122 021 -122

Find the derivatives of the following functions a)      y = 5x 4 +3x -1-x 3 b)      y = (x+1) -1/2 c)      y= e x2+1 d)     y= e 3x lnx e)     y =ln(x+1/x)y

If Var(x) = 4, find Var (3x+8), where X is a random variable. Var (ax+b) = a 2 Var x Var (3x+8) = 3 2 Var x = 36

A business has the opportunity to expand by purchasing a machine at a cost of £80,000. The machine has an estimated life of 5 years and is projected to generate a cashflow of £20,0


Differentiation Formulas : We will begin this section with some basic properties and formulas.  We will give the properties & formulas in this section in both "prime" notation &