Is this Fraction Simplified Correctly?

  • MHB
  • Thread starter mathlearn
  • Start date
  • Tags
    Fraction
In summary, the process of finding a common denominator when solving fractions involves identifying the lowest common multiple (LCM) of the denominators and converting each fraction to an equivalent one with the LCM as the denominator. Fractions can be simplified before solving them, which can make the calculations easier. The order of operations for solving fractions is the same as regular arithmetic. To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and keep the same denominator. When adding or subtracting fractions, it is necessary to have the same denominators, but this is not necessary when multiplying or dividing fractions.
  • #1
mathlearn
331
0
$\sqrt{5} * \left(\frac{5}{4}\right)^{\!{\frac{1}{2}}}$

Many Thanks :)
 
Mathematics news on Phys.org
  • #2
mathlearn said:
$\sqrt{5} * \left(\frac{5}{4}\right)^{\!{\frac{1}{2}}}$

Many Thanks :)
Hint: \(\displaystyle x^{1/2} = \sqrt{x}\)

Can you finish from here?

-Dan
 
  • #3
topsquark said:
Hint: \(\displaystyle x^{1/2} = \sqrt{x}\)

Can you finish from here?

-Dan

$5^\frac{1}{2} * \frac{5^\frac{1}{2}}{2^2\frac{1}{2}}$

$5^\frac{1}{2} * \frac{5^\frac{1}{2}}{2}$

From there ... (Thinking)
 
  • #4
$$\frac{5^{1/2}\cdot5^{1/2}}{2}$$

Does that help? (See topsquark's post).
 
  • #5
greg1313 said:
$$\frac{5^{1/2}\cdot5^{1/2}}{2}$$

Does that help? (See topsquark's post).

According to topsquark $\displaystyle x^{1/2} = \sqrt{x}$

$$\frac{\sqrt{5}\cdot\sqrt{5}}{2}=\frac{\sqrt{5}^2}{2}=\frac{5}{2}$$

Correct?

Many THanks :)
 
  • #6
mathlearn said:
According to topsquark $\displaystyle x^{1/2} = \sqrt{x}$

$$\frac{\sqrt{5}\cdot\sqrt{5}}{2}=\frac{\sqrt{5}^2}{2}=\frac{5}{2}$$

Correct?

Many THanks :)

Correctomundo! Well done.
 

FAQ: Is this Fraction Simplified Correctly?

How do I find the common denominator when solving fractions?

In order to find the common denominator, you need to first identify the lowest common multiple (LCM) of the denominators of the fractions. This can be done by listing out the multiples of each denominator and finding the smallest number that appears in both lists. Once you have the LCM, you can convert each fraction to an equivalent one with the LCM as the denominator.

Can I simplify fractions before solving them?

Yes, you can simplify fractions before solving them. This can make the calculations easier and the final answer simpler. To simplify a fraction, divide both the numerator and denominator by their greatest common factor (GCF).

What is the order of operations when solving fractions?

The order of operations when solving fractions is the same as regular arithmetic. First, simplify any fractions that can be simplified, then perform any multiplication or division in the problem, and finally add or subtract as necessary.

How do I convert a mixed number to an improper fraction?

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, then add the numerator. The result becomes the new numerator, and the denominator stays the same. For example, to convert 2 1/4 to an improper fraction, you would do (2 x 4) + 1 = 9, so the improper fraction would be 9/4.

Is it necessary to change the denominators to be the same when adding or subtracting fractions?

Yes, when adding or subtracting fractions, the denominators must be the same. This is because fractions with different denominators cannot be added or subtracted without first finding a common denominator. However, when multiplying or dividing fractions, it is not necessary to have the same denominators.

Similar threads

Replies
41
Views
2K
Replies
7
Views
2K
Replies
11
Views
2K
Replies
3
Views
2K
Replies
1
Views
1K
Replies
2
Views
1K
Replies
7
Views
2K
Back
Top