问题
解答题
能简算的要简算.
|
答案
(1)
×3 4
÷6 13
,9 26
=
×3 4
×6 13
,26 9
=
×(3 4
×6 13
),26 9
=
×3 4
,4 3
=1;
(2)
÷( 4 9
+1 3
),1 3
=
÷4 9
,2 3
=
;2 3
(3)
×7+5 9
×11,5 9
=
×(7+11),5 9
=
×18,5 9
=10;
(4)[1-(
+1 4
)]÷3 8
,1 4
=[1-
]÷5 8
,1 4
=
÷3 8
,1 4
=
.3 2