Question

1/5×8÷4/5。3/5+1/2×4/5。5/6÷2/3÷5/6。（5/8+5/6）×4/25。

1/5×8÷4/5。3/5+1/2×4/5。5/6÷2/3÷5/6。（5/8+5/6）×4/25。（5/6-2/3）×9/10。1-7/9÷7/8。

求过程。

Answer 1

=1/5×8×5/4
=8/5×5/4
=2

追问

还有几题呢

追答

=3/5+2/5
=1

=5/6×3/2×6/5
=5/6×6/5×3/2
=1×3/2
=3/2

=5/8×4/25+5/6×4/25
=1/10+2/15
=1/6

错了7/30

追问

那题

追答

=5/6×9/10-2/3×9/10
=

就是1/6的

=5/6×9/10-2/3×9/10
=3/4-3/5
=3/20

=1-7/9×8/7
=1-8/9
=1/9

好了，亲