4/9×[0.75-(7/16-0.25)] 能简便就用简便方法计算

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4/9×[0.75-(7/16-0.25)]能简便就用简便方法计算4/9×[0.75-(7/16-0.25)]能简便就用简便方法计算4/9×[0.75-(7/16-0.25)]能简便就用简便方法计算4

4/9×[0.75-(7/16-0.25)] 能简便就用简便方法计算
4/9×[0.75-(7/16-0.25)] 能简便就用简便方法计算

4/9×[0.75-(7/16-0.25)] 能简便就用简便方法计算
4/9×[0.75-(7/16-0.25)]
= 4/9×[0.75-7/16+0.25]
= 4/9×[1-7/16]
=4/9×9/16
=1/4