6÷3/8-3/8÷6 4/7x5/9+3/7x5/9 5/2-(3/2+4/5) 7/8+(1
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6÷3/8-3/8÷6
=6×8/3-3/8x1/6
=16-1/16
=16又16分之15
4/7x5/9+3/7x5/9
=5/9x(4/7+3/7)
=5/9x1
=5/9
5/2-(3/2+4/5)
=5/2-3/2-4/5
=1-4/5
=1/5
7/8+(18+1/8)
=7/8+18+1/8
=19
9x5/6+5/6
=5/6x(9+1)
=5/6x10
=25/3
3/4x8/9-1/3
=2/3-1/3
=1/3
=6×8/3-3/8x1/6
=16-1/16
=16又16分之15
4/7x5/9+3/7x5/9
=5/9x(4/7+3/7)
=5/9x1
=5/9
5/2-(3/2+4/5)
=5/2-3/2-4/5
=1-4/5
=1/5
7/8+(18+1/8)
=7/8+18+1/8
=19
9x5/6+5/6
=5/6x(9+1)
=5/6x10
=25/3
3/4x8/9-1/3
=2/3-1/3
=1/3
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