SOLUTION: The average (Av) of two numbers (X1 and X2) is found by adding the numbers together and dividing the total by two as shown in the formula below Av= (x1 + x2 )/2 What is the a

Algebra ->  Equations -> SOLUTION: The average (Av) of two numbers (X1 and X2) is found by adding the numbers together and dividing the total by two as shown in the formula below Av= (x1 + x2 )/2 What is the a      Log On


   

Question 743778: The average (Av) of two numbers (X1 and X2) is found by adding the numbers together and dividing the total by two as shown in the formula below
Av= (x1 + x2 )/2
What is the average of 3/4 and 2/5 as a fraction operation?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
(3/4 + 2/5)/2 combine the fractions by finding a common denominator.
In this case the common denominator is 4*5=20
[(3*5+2*4)/4*5]/2
[(15+8)/20)]/2
[23/20]/2 INVERT THE DENOMINATOR & MULTIPLY.
23/10*1/2
23/20 ANS.