SOLUTION: How would I solve this problem: 7 over e+f comma, 5 over e comma, 6 over f: when working with LCD

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Question 556909: How would I solve this problem:
7 over e+f comma, 5 over e comma, 6 over f: when working with LCD
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
this is what i see:
7%2F%28e%2Bf%295%2Fe6%2Ff
i find the lcd by multiplying all the bottom variables together
%28e%2Bf%29%28e%29%28f%29
e%5E2f%2Bef%5E2
so
to find the numeratorsu multiply the denominators to the numerators that dont already have that denom under it
7ef 5f%28e%2Bf%29 6e%28e%2Bf%29
7ef 5ef%2B5f%5E2 6e%5E2%2B6ef
no put the numeraters back over the denom
7ef%2F%28e%5E2f%2Bef%5E2%29 %285ef%2B5f%5E2%29%2F%28e%5E2f%2Bef%5E2%29 %286e%5E2%2B6ef%29%2F%28e%5E2f%2Bef%5E2%29