2
No, that's 3/4
(3/2)-(5/8) = 7/8 or 0.875
3/8 minus 1/2 is -1/8
20
3 eighths. three fourths is the same as six eighths, so subtract your 3/8 and you have 3/8 left
2/3
There are 19 because 19/8 = 2 and 3/8
2/3
2/3
There are 22 eighths in 2 and 3/4 because 22/8 = 2 and 3/4
1/2 minus 7/8 equals -3/8