34/35-(4/15+2/5) 2-3/8÷7/16-1/7 (5/12+1/9-3/8)×72简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 22:07:17
34/35-(4/15+2/5) 2-3/8÷7/16-1/7 (5/12+1/9-3/8)×72简便计算

34/35-(4/15+2/5) 2-3/8÷7/16-1/7 (5/12+1/9-3/8)×72简便计算
34/35-(4/15+2/5) 2-3/8÷7/16-1/7 (5/12+1/9-3/8)×72简便计算

34/35-(4/15+2/5) 2-3/8÷7/16-1/7 (5/12+1/9-3/8)×72简便计算
34/35-(4/15+2/5)
=34/35-4/15-2/5
=34/35-4/15-14/35
=4/7-4/15
=4*8/105
=32/105
2-3/8÷7/16-1/7
=2-3/8*16/7-1/7
=2-6/7-1/7
=2-(6/7+1/7)
=2-1
=1
(5/12+1/9-3/8)×72
=30+8-27
=11

34/35-(4/15+2/5)
=34/35-(4/15+6/15)
=34/35-2/3
=102/105-70/105
=32/105
2-3/8÷7/16-1/7
=2-3/8×16/7-1/7
=2-6/7-1/7
=1
(5/12+1/9-3/8)×72
=30+8-27
=38-27
=11