One half minus one fifth is 3 tenths
0.5-0.2=0.3
One whole minus two fifths is three fifths.
1/2 minus 1/5 = 3/10
It is nine twentieths.
A number.
two tenths or, simplified, one fifth.
It is: 3/10 = three tenths
1 1/5 -1/2 = 7/10
One and a half minus one and a half is zero.
1 whole = 2/21 whole - 1/2:= 2/2 - 1/2= 1/2
1 and 3 fifth