13/40 divided by two = 13/80 or 0.1625
10.1625
67 plus 13 = 80 80 divided by 8 = 10
1.6
13.3333
13.333 recurring or 13 with a remainder of 2.
6400 divided but 80 = 80
13% of 80= 13% * 80= 0.13 * 80= 10.4
80
0.3125
64,000 divided by 80 = 800
an f 50% and below is an f 50% to 60% is a d 70% to 80% is a c 80% to 90% is a b 90% and above is an A 13/55 on a calculator do 13 divided by 55 and get 0.236363636 and you get your percent of 24%