7/15 + -2/3 x 0.4 - 3 1/3
-2/3 = -10/15
7/15 + -10/15 = -3/15
-3/15 x 0.4 = -0.3
-0.3 = -3/10
-3/10 - 3 1/3
3 1/3 = 10/3
-3/10 - 10/3
-3/10 = -9/30, 10/3 = 100/30
-9 - 100
100 - 9 = 91
-3/30 - 100/30 = -91/30
-91/3 = -30.3, 30/3 = 10
-30.3 rounded is -30.
30/10 = 3/1 = 3
The answer is 3.
Let me know if this is the correct answer. :)