11/12+5/8+1/8+1/12-4/27-3/27

如题所述

11/12+5/8+1/8+1/12-4/27-3/27
=(11/12+1/12)+(5/8+1/8)-(4/27+3/27)
=12/12+6/8-7/27
=1+(3/4-7/27)
=1+(3×27-7×4)/(27×4)
=1+(81-28)/(27×4)
=1+53/108
=1又53/108
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第1个回答  2020-09-02
=11/12+1/12+5/8+1/8-7/27
=1+3/4-7/27
=1+82/108-28/108
=1.5
第2个回答  2020-09-01
11/12+5/8+1/8+1/12-4/27-3/27
=(11/12+1/12)+(5/8+1/8)-(4/27+3/27)
=1+3/4-7/27
=1+3*27/108-7*4/108
=1+81/108-28/108
=1+53/108
=1又53/108