Question

24又247分之8×2.375＋12又285分之45×4.75÷115－195分之167=?简便计算

Answer 1

24又之247分8×2.375
=(24+8/247)×19/8
=24×19/8+8/247×19/8
=57+1/13
12又285分之45×4.75÷115
=(12+285分之45)×19/4÷115
=(12×19/4+285分之45×19/4)÷115
=(57+×3/19×19/4)÷115
=(57+×3/4)÷115
=1/2+1/460
24又247分之8×2.375＋12又285分之45×4.75÷115－195分之167
=57+1/13+1/2+1/460－195分之167
=57+1/13－195分之167+1/2+1/460
=56+43/195+1/2+1/460
=56+1/2+(43*23*4)/(23*4*13*3*5)+39/(23*4*13*3*5)
=56+1/2+3995/(23*4*13*3*5)
=56+ 1/2+791//(23*4*13*3)
=56+2585/3558