12/5-〈1/3除5/6+9/10〉等于多少?
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12/5-〈1/3除5/6+9/10〉等于多少?
![12/5-〈1/3除5/6+9/10〉等于多少?](/uploads/image/z/15564327-15-7.jpg?t=12%2F5-%E3%80%881%2F3%E9%99%A45%2F6%2B9%2F10%E3%80%89%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F)
12/5-(1/3×6/5+9/10)
=12/5-(2/5+9/10)
=12/5-(4/10+9/10)
=24/10-13/10
=11/10
ok了应该是这样
=12/5-(2/5+9/10)
=12/5-(4/10+9/10)
=24/10-13/10
=11/10
ok了应该是这样