
11/12 8分之5-括号3/8-12分之一括回简便方法算
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11/12+5/8-(3/8-1/12)
=11/12+5/8-3/8+1/12
=11/12+1/12+5/8-3/8
=1+1/4
=5/4
11/12-5/8-(3/8-1/12)
=11/12-5/8-3/8+1/12
=11/12+1/12-(5/8+3/8)
=1-1
=0
=11/12+5/8-3/8+1/12
=11/12+1/12+5/8-3/8
=1+1/4
=5/4
11/12-5/8-(3/8-1/12)
=11/12-5/8-3/8+1/12
=11/12+1/12-(5/8+3/8)
=1-1
=0
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