(3/5) - 30 = (3 - 150)/5 = -147/5 = -29 and 2/5
Call it 21 fifths minus 13 fifths, ie 8 fifths which is one-and-three-fifths
The answer is sixteen over thirty five.
3 and 2/5
minus three fifths
We can convert into seventy-fifths. 6 and nine seventy-fifths minus twenty-five seventy-fifths equals negative 6 and thirty-four seventy-fifths.
7/20
two fifths
Two and two fifths. Five minus two and three fifths = two and two fifths
Seven minus 3 2/5 is 3 3/5
six and three fifths
two fifths
1/4 minus 2/5 minus 3/10 is equal to -0.45 or -9/20