脱试计算（能简便的要简便算）49÷517+59×175（213+511）×13×110.575×19+1.9×4.252627×28．

Question

脱试计算（能简便的要简便算）
(4)/(9)÷(5)/(17)+(5)/(9)×(17)/(5)                        
（(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．脱试计算（能简便的要简便算）
(4)/(9)÷(5)/(17)+(5)/(9)×(17)/(5)                        
（(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．
(4)/(9)÷(5)/(17)+(5)/(9)×(17)/(5)                        
（(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．(4)/(9)494499(5)/(17)+(5)/(9)×(17)/(5)                        
（(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．(5)/(17)517551717(5)/(9)×(17)/(5)                        
（(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．(5)/(9)595599(17)/(5)                        
（(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．(17)/(5)175171755
(2)/(13)+(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．(2)/(13)213221313(5)/(11)）×13×11
0.575×19+1.9×4.25
(26)/(27)×28．(5)/(11)511551111

(26)/(27)×28．(26)/(27)262726262727

Answer 1

①49÷517+59×175  =49×175+59×175=(49+59)×175=1×175=175；                      ②（213+511）×13×11=213×13×11+511×11×13=22+65=87；③0.575×19+1.9×4.25=5.75×1.9+1.9×...