2⼀3-(5⼀6-3⼀4)÷3⼀8简算

2025-05-15 00:45:18
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回答(1):

2/3-(5/6-3/4)÷3/8
=2/3-(5/6 x 8/3)-(3/4 x 8/3)
=2/3-20/9+2
=2/3-2又2/9+2
=2/3-2/9
=4/9