Wednesday

August 27, 2014

August 27, 2014

Posted by **Barb** on Thursday, January 31, 2013 at 10:54am.

Finding decmpositions of a fraction into 2 units as indicated on a paprus written in Greek.

- Math -
**Steve**, Thursday, January 31, 2013 at 11:09amrz/pqr = q/pqr + p/pqr

rz = q + p

r = (p+q)/z

- Math -
**Reiny**, Thursday, January 31, 2013 at 11:44amRS = 1/(pr) + 1/(qr) , if r = (p+q)/z

= 1/( p(p+q)/z) + 1/( q(p+q)/z)

= z/(p(p+q)) + z/(q(p+q))

= (zq + zp)/( pq(p+q))

= z(p+q)/(pq(p+q))

= z/(p+q)

= LS

This allows you to express any fraction , which has a factorable denominator , into two fraction each with a numerator of 1

e.g.

suppose we have 5/12

5/12 = 5/(3x4)

so using the above formula

z = 5

p = 3

q=4

then r = 7/5

so 5/12 = 1/(3(7/5)) + 1/4(7/5))

= 1/(21/5) + 1/(28/5)

= 5/21 + 5/28

= 5( 1/21 + 1/28)

- Math -
**Barb**, Thursday, January 31, 2013 at 12:13pmThank you so much!!

**Related Questions**

Math - What are irrational, rational, and natural numbers? A rational number is ...

math - Will someone please show me how to do this problem. I have to write this ...

math - i need help with this question!!! describe your strategy for finding a ...

7th grade Math quick help Ms. Sue - Can you check to see if tese are right? 1. ...

Math - I am having trouble with the concept of unit conversions for math C30. I ...

algebra - Perform the indicated operation and, if possible, simplify. Please ...

math - MathMate attempted to help but did not show how the problem is answered. ...

math - what is 3m/m (fraction), Written as a mixed fraction

math - show me how to convert a decimal into a fraction in simplest form

math - what is 84 over 100 in simplest form? If i had a calculater i could help ...