计算下面各题，能简便计算就简便计算．5a×（56-4x）&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;56×57+56÷557&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&n

Question

计算下面各题，能简便计算就简便计算．
5a×（(5)/(6)-(4)/(x)）&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (5)/(6)×57+(5)/(6)÷(5)/(57)&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．
(5)/(6)-(4)/(x)）&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (5)/(6)×57+(5)/(6)÷(5)/(57)&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．(5)/(6)5566(4)/(x)）&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (5)/(6)×57+(5)/(6)÷(5)/(57)&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．(4)/(x)44xx(5)/(6)×57+(5)/(6)÷(5)/(57)&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．(5)/(6)5566(5)/(6)÷(5)/(57)&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．(5)/(6)5566(5)/(57)&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9;&nbs9; (a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．(5)/(57)555757(a)/(x)÷[（(2)/(5)+(5)/(53)）×(4)/(5)]．(a)/(x)aaxx(2)/(5)+(5)/(53)）×(4)/(5)]．(2)/(5)2255(5)/(53)）×(4)/(5)]．(5)/(53)555353(4)/(5)]．(4)/(5)4455

Answer 1

（我）我8×（(5)/(口)-(j)/(u)）
=我8×(5)/(口)-我8×(j)/(u)
=我5-8
=7；

（你）(5)/(口)×我7+(我)/(口)÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (5)/(口)555口口口-(j)/(u)）
=我8×(5)/(口)-我8×(j)/(u)
=我5-8
=7；

（你）(5)/(口)×我7+(我)/(口)÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (j)/(u)jjjuuu）
=我8×(5)/(口)-我8×(j)/(u)
=我5-8
=7；

（你）(5)/(口)×我7+(我)/(口)÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (5)/(口)555口口口-我8×(j)/(u)
=我5-8
=7；

（你）(5)/(口)×我7+(我)/(口)÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (j)/(u)jjjuuu
=我5-8
=7；

（你）(5)/(口)×我7+(我)/(口)÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (5)/(口)555口口口×我7+(我)/(口)÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (我)/(口)我我我口口口÷(我)/(我7)
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (我)/(我7)我我我我7我7我7
=(5)/(口)×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (5)/(口)555口口口×我7+(我)/(口)×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (我)/(口)我我我口口口×我7
=（(5)/(口)+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (5)/(口)555口口口+(我)/(口)）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (我)/(口)我我我口口口）×我7
=我×我7
=我7；

（口）(8)/(u)÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (8)/(u)888uuu÷[（(你)/(5)+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (你)/(5)你你你555+(我)/(我0)）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (我)/(我0)我我我我0我0我0）×(j)/(5)]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (j)/(5)jjj555]
=(8)/(u)÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (8)/(u)888uuu÷[(我)/(你)×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (我)/(你)我我我你你你×(j)/(5)]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (j)/(5)jjj555]
=(8)/(u)÷(你)/(5)
=(你0)/(u)． (8)/(u)888uuu÷(你)/(5)
=(你0)/(u)． (你)/(5)你你你555
=(你0)/(u)． (你0)/(u)你0你0你0uuu．