11/8-(2/3-1/4)

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11/8-(2/3-1/4)11/8-(2/3-1/4)11/8-(2/3-1/4)11/8-(2/3-1/4)=11/8-(6/12-3/12)=11/8-3/12=11/8-2/8=9/811/8

11/8-(2/3-1/4)
11/8-(2/3-1/4)

11/8-(2/3-1/4)
11/8-(2/3-1/4)
=11/8-(6/12-3/12)
= 11/8-3/12
= 11/8- 2/8
= 9/8

11/8-(2/3-1/4)
=11/8+1/4-2/3
=13/8-2/3
=39/24-16/24
=23/24


请好评

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11/8-(2/3-1/4)
=33/24-10/24
=23/24
望采纳,谢谢