Answer:
a) -2/9
Explanation:
2/3 - 5/6, you would need to start by making the denominators the same, so 2/3 would become 4/6. 4/6-5/6 = -1/6.
-1/6 ÷ 3/4, use the keep change flip rule
-1/6 × 4/3 then multiply directly across:
-1×4=-4
6×3=18
-4/18 reduces to -2/9