18/40 = 0.45
14/40 in decimal form is 0.35
0.45
57/40 - 1.425 in decimal form
8 21/40 in decimal form is 8.525.
40/50 = 80/100 = 0.80 The decimal form is what you get when you type 40/50 in your calculator
3/40 = 0.075
0.225
.825
0.775
0.475
18 = 9 40 20