Answer:
-17/12
Explanation:
║5/6 - 7/12║- ║5/3║
= ║10/12 - 7/12║ - ║5/3║
= ║3/12║- ║5/3║
= 3/12 - 5/3
= 3/12 - 20/12
= -17/12
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