Question

14/19x{1/2+11/15:[1/60+162/1-(1/270+1/405+1/360)]}

Answer 1

14/19x{1/2+11/15:[1/60+162/1-(1/270+1/405+1/360)]}=
=14/19 × {1/2 + 11/15: [1/60 + 9720/60 -(12/3240 + 8/3240 + 9/3240)]}=
=14/19 × [1/2 + 11/15: (54/3240 + 524880/3240 -29/3240)]=
=14/19 × (1/2 + 11/15: 524905/3240)=
=14/19 ×(1/2 + 11/15 × 3240/524905)=
=14/19×(1/2+35640/7873575)=
=14/19 × (1/2 + 2376/524905)
=14/19 ×(524905/1049810 + 2376/524905)=
=14/19 × 527281/1049810=
=7381934/19946390