The absolute value of 40 hundredths is less than one and so you cannot write it as a whole number.
40/100 can't be a whole number.
0.40
.40
0.4
40/5 = 8, a whole number.
0.40
.40
0.40
3,020.40
40 hundredths in standard form is 4.0 × 10-1
40/100=2/5
40 hundredths or ( 40 /100 ) or 0.4 as a decimal.
8.40 : Note that 40/100 = 0.40