First, here's a neat trick if you hate dealing with fractions (I just learned this today XD) Find the LCM of the denominators which in this case is 8 then multiply 8/1 by the fractions. 8/1(-5/4c-1/4=-3/4+5/8c) You would end up with: -10c - 2 = 6 + 5c Now do -10c - 5c to get -15c -15c - 2 = 6 -2+2 cancels 2+6=7 -15c=7 divide each side by 15 The answer is c = -7/15
25/80 + 24/80 = 49/80. 16 and 20 both go into 80. !6 goes in 5 times so you multiply 5 by 5. 20 goes into 80 4 times so you multiply 4 by 4. 24/80 + 25/80 = 49/80.
