问题
解答题
|
答案
(1)
÷3 4
÷7 8 15 14
=
÷(3 4
×7 8
)15 14
=
÷3 4 15 16
=
;4 5
(2)
×4 5
÷1 7 2 5
=
÷4 5
×2 5 1 7
=2×1 7
=
.2 7
|
(1)
÷3 4
÷7 8 15 14
=
÷(3 4
×7 8
)15 14
=
÷3 4 15 16
=
;4 5
(2)
×4 5
÷1 7 2 5
=
÷4 5
×2 5 1 7
=2×1 7
=
.2 7