Substitute x=3, y=4. $(4*3 - 4) : (2*3 + 3*4) = (12-4) : (6+12) = 8:18 = 4:9$.
x=3, y=4 रखें। $(4*3 - 4) : (2*3 + 3*4) = (12-4) : (6+12) = 8:18 = 4:9।