<h2>Step-by-step explanation:</h2><h3>-7/8 - - 5/6 = -7/8 + 5/6</h3><h3 /><h3>Now find the leas common multiple between the denominators and that would be 24.</h3><h3 /><h3>-7/8 = -21/24</h3><h3>5/6 = 20/24</h3><h3 /><h3>Now add -21/24 to 20/24</h3><h3 /><h3>Your answer is -1/24</h3>