3-7/12-5/12怎么简便运算
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![3-7/12-5/12怎么简便运算](/uploads/image/z/5319822-30-2.jpg?t=3-7%2F12-5%2F12%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
3-7/12-5/12怎么简便运算
3-7/12-5/12怎么简便运算
3-7/12-5/12怎么简便运算
谷哥22为您
提出问题:3-7/12-5/12怎么简便运算
答案:3-(7/12+5/12)
=3-1
=2
更上一层楼.
3-(7/12-+5/12)
=3-1
=2
3-7/12-5/12怎么简便运算
= 3-(7/12+5/12)
= 3 - 1
= 2
3 - 7 / 12 - 5 / 12
= 3 - (7 / 12 + 5 / 12)
= 3 - 1
= 2