Posted by **Deb** on Friday, January 9, 2009 at 5:12pm.

#1 2/3 - 1/6 + 5/9

#2

4 1/3 - 3 1/9 + 2 1/2

#3

Find the five-number summary of the following set of numbers. (Show the work and label your answers.)

335, 234, 187, 394, 237, 452, 300, 201, 303

- Math 115 3 -
**Ms. Sue**, Friday, January 9, 2009 at 5:14pm
We'll be glad to check your answers or explain any concepts you don't understand.

- Math 115 3 -
**Deb**, Friday, January 9, 2009 at 5:43pm
don't remember how to do any of this

Have no idea of what #3 is

- Math 115 3 -
**Ms. Sue**, Friday, January 9, 2009 at 6:07pm
When adding or subtracting fractions, you first must get a common denominator.

2/3 - 1/6 + 5/9 = 12/18 - 3/18 + 10/18 = 19/18 = 1 1/18

Please try the second one yourself.

I'm not sure about # 3. You'll probably get a response from another tutor if you post # 3 as a new question.

- Math 115 3 -
**Deb**, Friday, January 9, 2009 at 7:37pm
do I change the mixed number with a common denminator or just the fradction part first?

4 1/3 = 13/3 =78/18

3 1/9 = 28/9 =56/18

2 1/2 = 5/2 =45/18

78/18 -56/18 + 45/18 =67/18 =3 13/18

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