Firstly, do 11 minus 4 = 7. So, now we have 7 and two ninths, minus five ninths. Much easier, 6 and 6 ninths.
Two thirds minus two ninths is 4 ninths. Two thirds is 6 ninths. 6 ninths minus 2 ninths is 4 ninths.
Two thirds is six ninths; six ninths minus four ninths is two ninths.
2/9
two and two thirds
Expressed as a mixed number in its simplest form, 3 - 7/9 = 2 2/9 or two and two ninths.
Seven ninths minus four ninths is 1/3.
7 ninths, 2 thirds is 6 ninths
2/9 minus 1/8 is 7/72