问题
解答题
|
答案
(1)
×2 3
×5 16
,3 5
=
×2 3
×3 5
,5 16
=
×2 5
,5 16
=
;1 8
(2)
÷(1 4
-2 3
),1 6
=
÷1 4
,1 2
=
;1 2
(3)
×3 4
+0.75×2 9
,5 9
=
×3 4
+2 9
×3 4
,5 9
=(
+2 9
)×5 9
,3 4
=
×7 9
,3 4
=
;7 12
(4)12.5%×
÷4 5
,1 8
=12.5%÷
×1 8
,4 5
=1×
,4 5
=
;4 5
(5)
÷[32×(1-37.5%)],5 7
=
÷[32×0.625],5 7
=
÷20,5 7
=
;1 28
(6)
×17+8÷13 21
,21 17
=
×13+8×17 21
,17 21
=
×(13+8),17 21
=
×21,17 21
=17.