3/8×(-4)+5 5/9÷(-1/3)-7
3/8×(-4)+5 = -12/8+5 = -3/2+5 = -3/2+10/2 = 7/2 = 3,5 5/9÷(-1/3)-7 = -5/9*3-7 = -15/9-7 = -5/3-21/3 = -26/3