18/20 minus 2/5 is 1/2.
9/20 minus 2/5 is 1/20.
Two and two fifths. Five minus two and three fifths = two and two fifths
First we convert them into a standard amount, which is twentieths. Then we can do the calculation.8/20 - 5/20 = 3/20
Yes, it is.
minus three fifths
2.15 or 2 and three twentieths
One whole minus two fifths is three fifths.