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3 years ago

How do I find a least common denominator?

Mathematics

2 answers:

Kitty [74]3 years ago

6 0

Answer:

Below.

Step-by-step explanation:

You can find this by first finding the prime factors of the numbers.

For example, find the LCD of 12 and 16:

12 = 2 * 2 * 3

16 = 2 * 2 * 2 * 2

There are 2 pairs of 2's in the list so only 2 of these four are included in the calculation. All other factors are included.

The LCD is:

2 * 2 * 2 * 2 * 3

= 16*3

= 48.

Find the LCD of 3 and 6

6 = 2 * 3

3 = 3

- so only one of the 3's is included:

LCD = 2*3 = 6.

Afina-wow [57]3 years ago

4 0

Answer:

to find the least common denominator list out the multiples of both denominator until you find the smallest multiple that is shared by both

4: 4,8,12,16,20,24,28,32,

7:14,21,28,35,

because 28 is the first shared multiple of 4 and 7,it most be the least common denominator for these two fractions.

Step-by-step explanation:

hope its help po

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Answer:

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Step-by-step explanation:

Percent error is found with the formula $\displaystyle P=\big{|}\frac{V_A-V_E}{V_E}\big|\times100\%$ , where P is the percent error, $V_A$ is the actual value that you measure, and $V_E$ is the accepted value or the expected value. For instance, the accepted value for specific heat of water is:

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This would also be the expected value in a lab experiment.

We are given the accepted value of 15 feet. Therefore, we know that this is $V_E.$ Then, we see that Tommy measures the length as 13.5 feet - this is $V_A.$

Finally, we need to place these values into the equation and solve for P.

$\displaystyle P = \big{|}\frac{V_A-V_E}{V_E}\big{|}\times100\%\\\\P = \big{|}\frac{13.5-15}{15}\big{|}\times100\%\\\\P = \big{|}-\frac{1.5}{15}\big{|}\times100\%\\\\P = \big{|}-\frac{1}{10}\big{|}\times100\%\\\\P = \big{|}-0.1\big{|}\times100\%\\\\P = \big{|}-10\%\big{|}\\\\P = |-10\%| = 10\%$

Therefore, Tommy's percent error is 10%.

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3 years ago

How do I find a least common denominator? ​

How do I find a least common denominator?