The diagram below represents the sum of 1/4,1/4 and 1/4.

The sum of 1/4, 1/4, and 1/4 is 3/4. If fractions have the same denominator (the bottom number) then you can just add the numerators (the top number)  together and put it over the common denominator.

1+1+1= 3 and you put that over the 4 and get 3/4

correct

step-by-step explanation:

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.