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January 31, 2015

January 31, 2015

Posted by **Bryan** on Sunday, July 13, 2008 at 7:17pm.

2/3 - 1/5 = 1/2

2.Multiplu

4/5 * 6/7 = 24/35

3.subtract write an mixed numeral for the answear

20, 1/9

14, 7/15

- Math (Check -
**Ms. Sue**, Sunday, July 13, 2008 at 7:29pmPlease see the last answer for the correction for 1.

2. is correct.

3. 20 1/9 - 14 7/15 =

You need to find a common denominator. 45 is divisible by 9 and 15

20 1/9 - 14 7/15 = 20 5/45 - 14 21/45

Now we need to change the first number to get a fraction larger than 21/45

20 5/45 = 19 50/45

19 50/45 - 14 21/45 = 5 29/45

- Math (Check -
**Bryan**, Sunday, July 13, 2008 at 7:57pmIs this correct?

1. 1/3 > 7/10

2. prime factors of 441 are 1,3,9,7,49,441

3. prime factors of 27 are 1,3,6,9,27

- Math (Check -
**Ms. Sue**, Sunday, July 13, 2008 at 8:17pm1. 1/3 > 7/10

This is not correct. 1/3 is not greater than 7/10.

30 is the common denominator -- so 10/30 is less than 21/30.

2. Right!

3. Right!

1/3 = 10/

- Math (Check -
**Anonymous**, Tuesday, November 1, 2011 at 5:57pm(4.9*10^-6)*(2*10^-4)

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