Сократите. 1)12*21/35*15. 2)25*17*44/51*8*75. 3) 17*48/17*16-9*16

Question

Сократите. 1)12*21/35*15. 2)25*17*44/51*8*75. 3) 17*48/17*16-9*16

Answer 1

12*21/35*15=540/5=108
25*17*44/51*8*75=660000/3=220000
17*48/17*16-9*16=768-144=624