如题所述
(1)1/4÷[(1/3+5/6)]*2/7
=1/4Ã7/6Ã2/7
=1/12
(2)3/5*[(7/12-1/3)÷3/4]
=3/5*ï¼1/4*4/3ï¼
=3/5*1/3
=1/5
(3)1-5/3÷5/2-1/3
=1-5/3*2/5-1/3
=1-ï¼2/3+1/3ï¼
=1-1
=0
ç¥ä½ å¼å¿
=1/4Ã7/6Ã2/7
=1/12
(2)3/5*[(7/12-1/3)÷3/4]
=3/5*ï¼1/4*4/3ï¼
=3/5*1/3
=1/5
(3)1-5/3÷5/2-1/3
=1-5/3*2/5-1/3
=1-ï¼2/3+1/3ï¼
=1-1
=0
ç¥ä½ å¼å¿
温馨提示:答案为网友推荐,仅供参考