SOLUTION: how do i find the average of 5/6 4/3 3/4 and how do i solve 5+3/7 2-1/2

Question 238491: how do i find the average of 5/6 4/3 3/4

and how do i solve 5+3/7 2-1/2
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how do i find the average of 5/6 4/3 3/4
------------------
Add the three fractions and divide by 3.
-----------------
(5/6) + (4/3) + (3/4)
---
gcd = 12
Rewrite each fraction with the gcd as its denominator:
---
(2*5)/gcd + (4*4)/gcd + (3*3)/gcd
---
Combine the numerators over the gcd:
[10 + 16 + 9]/gcd
---
35/12
============
To get the average, divide by 3
[35/12]/3 = 35/36
========================
Cheers,
Stan H.
RELATED QUESTIONS
find the average of 1/7 and 3/4. how do i do that? (answered by Alan3354)

How do I solve systems of equations by substitution for example {{{1/2}}}x +... (answered by AnlytcPhil)

How do I evaluate 6+(-10)+(-4)+3? How do I evaluate... (answered by TheDoctor)

How do i solve 5/9-1/2 How do i solve 5 3/4-2... (answered by Fombitz)

how do i solve x+3/4= 4... (answered by checkley75)

how do you find the average of 1/4, 3/8, and 5/6 ? (answered by stanbon)

How do i find the determinant? (2)(-1)(4) (8)(3)(-5)... (answered by jim_thompson5910)

how do I solve... (answered by jorel1380)

How do I find the element of a(base 1),(base 2)? 1 2 3 4 5 6 7 8... (answered by Edwin McCravy)