40/9 - 6/5
200/45 - 54/45 ie 146/45 ie three and eleven forty-fifths
two ninths
17.55555555555556
Seven ninths minus four ninths is 1/3.
Anything minus itself is zero.
One whole is nine ninths. Nine ninths minus four ninths equals five ninths.
Two thirds is six ninths; six ninths minus four ninths is two ninths.
Five and four-ninths
Firstly, do 11 minus 4 = 7. So, now we have 7 and two ninths, minus five ninths. Much easier, 6 and 6 ninths.
4/5 minus 3/4 is 1/20.
.31944
1/18
Expressed as a proper fraction in its simplest form, 4/9 - 2/3 = -2/9 or minus two ninths.