9)-4 3/8 -(-3 1/8)

9) $$-4\frac{3}{8} - (-3\frac{1}{8}) = -4\frac{3}{8} + 3\frac{1}{8} = -1\frac{2}{8} = -1\frac{1}{4} = -1,25$$

Ответ: -1,25