[3\4+(-1\2)-(-7\8)]除以(负八分之七)
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![[3\4+(-1\2)-(-7\8)]除以(负八分之七)](/uploads/image/z/15215790-30-0.jpg?t=%5B3%5C4%2B%28-1%5C2%29-%28-7%5C8%29%5D%E9%99%A4%E4%BB%A5%EF%BC%88%E8%B4%9F%E5%85%AB%E5%88%86%E4%B9%8B%E4%B8%83%EF%BC%89)
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[3\4+(-1\2)-(-7\8)]除以(负八分之七)
[3\4+(-1\2)-(-7\8)]除以(负八分之七)
[3\4+(-1\2)-(-7\8)]除以(负八分之七)
[3\4+(-1\2)-(-7\8)]/(-7/8)
=[6/8-4/8+7/8]/(-7/8)
=(9/8)/(-7/8)
=-9/7