If 6/8-1/2 is an estimate of 1/4 then what's the common denominator. use a number sentance to prove it!

If you mean the common denominator to
6/8 , 1/2 and 1/4
you';; have to factor the denominator of each fraction
start w the 1st
factors of 8: 1, 2, 4, 8
factors of 2: 1, 2
factors of 4: 1, 2, 4

Greatest common denominator is 2
because they all have it in their factors list
 

Recall that area of the triangle is 1/2*(base)*(height)1/2*(13)*(17) = 110.5the answer is 110.5