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Posted on Jan 02, 2017

Just want to make sure that we are on the same page.

2^(-3) + 3^(-3)

2 to the exponent -3 + 3 to the exponent -3

Because of BEDMAS, we have to do the exponent calculations first and then do the addition between the two terms last.

The rule of negative exponents is you put 1 over the base to the same exponent, but change the exponent from negative to positive.

=1/(2^3) + 1/(3^3)

= 1/8 + 1/27

To add or subtract numbers, we need a common denominator.

Let's factor 8 and 27 to get the lowest common multiple.

8 - 1 2 4 8

27 - 1 3 9 27

Nothing in common to eliminate, so we have to use 8 x 27 or 216.

27/216 + 8/216 = 35/216

Good luck,

Paul

2^(-3) + 3^(-3)

2 to the exponent -3 + 3 to the exponent -3

Because of BEDMAS, we have to do the exponent calculations first and then do the addition between the two terms last.

The rule of negative exponents is you put 1 over the base to the same exponent, but change the exponent from negative to positive.

=1/(2^3) + 1/(3^3)

= 1/8 + 1/27

To add or subtract numbers, we need a common denominator.

Let's factor 8 and 27 to get the lowest common multiple.

8 - 1 2 4 8

27 - 1 3 9 27

Nothing in common to eliminate, so we have to use 8 x 27 or 216.

27/216 + 8/216 = 35/216

Good luck,

Paul

Mar 11, 2017 | Homework

- Make sure you're working with two fractions.
- Multiply numerator x numerator, then multiply denominator x denominator.

- Make sure you're working with two fractions
- Flip the second fraction upside down.
- Change the division sign into a multiplication sign.
- Multiply top x top and bottom x bottom.

- Convert mixed numbers into improper fractions.
- Take the whole (non-fraction) number and multiply it by the denominator.
- Add that answer to the numerator.
- Put that amount over the original denominator and you will have an improper fraction.

- Find the lowest common denominator (bottom number). For both adding and subtracting fractions, you'll start with the same process.
- Multiply fractions to match the lowest common denominator.
- Add or subtract the two numerators (top number) but NOT the denominators.

Mar 07, 2017 | Homework

To convert a fraction to lowest terms, we must divide the numerator (the top number) and the denominator (the bottom number) by a common number until we can't reduce it any more. A method for doing this is to factor the numerator and denominator by their common factors.

So let's factor 711 and 22.

1 x 711

9 x 79

3 x 3 x 79

I don't think I can factor 79. We should check the numbers from 2 up to the square root of 79, or approximately 9.

Factoring 22,

1 x 22

2 x 11

Unfortunately, none of the factors of 711 are common with the factors of 22, so it is already in its lowest terms, and cannot be reduced.

Good luck,

Paul

So let's factor 711 and 22.

1 x 711

9 x 79

3 x 3 x 79

I don't think I can factor 79. We should check the numbers from 2 up to the square root of 79, or approximately 9.

Factoring 22,

1 x 22

2 x 11

Unfortunately, none of the factors of 711 are common with the factors of 22, so it is already in its lowest terms, and cannot be reduced.

Good luck,

Paul

Apr 09, 2015 | Office Equipment & Supplies

Multiply the numerators (the top numbers) and multiply the denominators (the bottom numbers).

As an example, 3/4 x 4/5 = (3 x 4)/(4 x 5) = 12/20. Now we should reduce it to lowest terms by dividing numerator and denominator by the greatest common factor. I divided the numerator and denominator by 4 and got 3/5.

Good luck.

Paul

As an example, 3/4 x 4/5 = (3 x 4)/(4 x 5) = 12/20. Now we should reduce it to lowest terms by dividing numerator and denominator by the greatest common factor. I divided the numerator and denominator by 4 and got 3/5.

Good luck.

Paul

Mar 09, 2015 | Office Equipment & Supplies

12 has factors 2*2*3

8 has factors 2*2*2

So lowest common denominator is 2*2*2*3 or 24

3/12 = 6/24 and 3/8 = 9/24

8 has factors 2*2*2

So lowest common denominator is 2*2*2*3 or 24

3/12 = 6/24 and 3/8 = 9/24

Jan 16, 2014 | Mathsoft Computers & Internet

By fraction I understand that the numerator and denominator are both integers. The way to simplify it by hand is to look for the greatest common divisor of the numerator and denominator and simplify by it.

For example 15/27=(3x5)/(3x9). The greatest common divisor of 15 and 27 is 3. Simplifying by 3, you get 5/9

For example 15/27=(3x5)/(3x9). The greatest common divisor of 15 and 27 is 3. Simplifying by 3, you get 5/9

May 22, 2011 | Office Equipment & Supplies

61/82 is already reduced to lowest terms since 61 and 82 have no factors in common (other than 1). In fact 61 is a prime number so it has no factors other than 1 and 61.

Nov 13, 2010 | The Learning Company Achieve! Math &...

0.85714285714 + (1.2-.75) = 1.30714285714

**please rate me **

Nov 02, 2010 | Office Equipment & Supplies

This might helpful: http://www.helpwithfractions.com/least-common-denominator.html > http://en.wikipedia.org/wiki/Lowest_common_denominator

Oct 20, 2009 | TOPICS Entertainment College Pro...

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