2 2 per 5 - 4 per 9 : 0,3 =

2 2/5 - ( 4/9 : 3/10 )
= 12/5 - ( 4/9 x 10/3 )
= 12/5 - 40/27
= 324/135 - 200/135
= 124/135

2 ²/5 - 4/9 ÷ 0,3
=>> 12/5 - 4/9 ÷ 3/10
=>> 12/5 - 4/9 × 10/3
=>> 12/5 - 40/27
=>> 324/135 - 200/135
=>> 124/135