Find 5/8 - 3/4
Which expression shows how to write 5/8 - 3/4 using a common denominator

First Option: 5/8 - 6/8

Step-by-step explanation:

The lowest common multiple of 8 and 4 is 8. Therefore, 8 becomes the denominator

5/8 - 2(3)/8

5/8 - 6/8

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.