a)
( 360 x 10 x 50 ) : 5
= 360 x [ {10 x 50} : 5 ]
= 360 x [ 500 : 5 ]
= 360 x 100
= 36000
b)
( 360 x 50 x 110) : ( 5 x 11 x 9)
= ( 360 : 9 ) x ( 50 : 5 ) x ( 110 : 11 )
= 40 x 10 x 10
= 4000
( 360 x 10 x 50 ) : 5
= 180000 : 5
= 36000
(360 x 50 x 110 ) : (5 x 11 x 9)
= 1980000 : 495
= 4000