能简便的要用简便方法计算12÷0.4÷34517÷9+19×51749÷[（56-12）+（59-518）]1.8×34+1.2×34-3413÷12-54×25315÷（36%+9%）

Question

能简便的要用简便方法计算 12÷0.4÷(3)/(4)	(5)/(17)÷9+(1)/(9)×(5)/(17)	(4)/(9)÷[（(5)/(6)-(1)/(2)）+（(5)/(9)-(5)/(18)）]
1.8×(3)/(4)+1.2×(3)/(4)-(3)/(4)	(1)/(3)÷(1)/(2)-(5)/(4)×(2)/(5)	315÷（36%+9%）

能简便的要用简便方法计算 12÷0.4÷(3)/(4)	(5)/(17)÷9+(1)/(9)×(5)/(17)	(4)/(9)÷[（(5)/(6)-(1)/(2)）+（(5)/(9)-(5)/(18)）]
1.8×(3)/(4)+1.2×(3)/(4)-(3)/(4)	(1)/(3)÷(1)/(2)-(5)/(4)×(2)/(5)	315÷（36%+9%）

能简便的要用简便方法计算
12÷0.4÷(3)/(4) (5)/(17)÷9+(1)/(9)×(5)/(17)       (4)/(9)÷[（(5)/(6)-(1)/(2)）+（(5)/(9)-(5)/(18)）]能简便的要用简便方法计算
12÷0.4÷(3)/(4)
(3)/(4)(3)/(4)3344(5)/(17)÷9+(1)/(9)×(5)/(17)      (5)/(17)÷9+(1)/(9)×(5)/(17)      (5)/(17)551717(1)/(9)×(5)/(17)      (1)/(9)1199(5)/(17)      (5)/(17)551717(4)/(9)÷[（(5)/(6)-(1)/(2)）+（(5)/(9)-(5)/(18)）](4)/(9)÷[（(5)/(6)-(1)/(2)）+（(5)/(9)-(5)/(18)）](4)/(9)4499(5)/(6)-(1)/(2)）+（(5)/(9)-(5)/(18)）](5)/(6)5566(1)/(2)）+（(5)/(9)-(5)/(18)）](1)/(2)1122(5)/(9)-(5)/(18)）](5)/(9)5599(5)/(18)）](5)/(18)551818 1.8×(3)/(4)+1.2×(3)/(4)-(3)/(4) (1)/(3)÷(1)/(2)-(5)/(4)×(2)/(5) 315÷（36%+9%）1.8×(3)/(4)+1.2×(3)/(4)-(3)/(4)(3)/(4)+1.2×(3)/(4)-(3)/(4)(3)/(4)3344(3)/(4)-(3)/(4)(3)/(4)3344(3)/(4)(3)/(4)3344(1)/(3)÷(1)/(2)-(5)/(4)×(2)/(5)(1)/(3)÷(1)/(2)-(5)/(4)×(2)/(5)(1)/(3)1133(1)/(2)-(5)/(4)×(2)/(5)(1)/(2)1122(5)/(4)×(2)/(5)(5)/(4)5544(2)/(5)(2)/(5)2255315÷（36%+9%）

Answer 1

（1）12÷0.4÷34=12÷25÷34=12×52×43=40；（2）517÷9+19×517       =517×19+19×517    =19×517×2=10153；（3）49÷[（56-12）+（59-518）]=49...