Question

Вычислить 

 2:2,25 × 9/32 - 30/103 × (2/15 + 19/12)

Answer 1

1)2,15+19,12=21,27
2)30,103*21,27=640,29081
3)22,25*9,32=207,37
207,37-640,29081=-432,92081