3/8 in decimal form is 0.375.
.75 or three-forths
If you mean three fourths then it is not equivalent to seven eighths
3/8 = 0.375 (exactly)
Yes, three quarters is larger than five eights because three quarters is equivalent to six eighths.
3 oz of liquid
if 4 and eight eights is subtracted by 3 and three eights, then you get 1 and five eights