Question

rut gon roi tinh: (84/144-225/60-169/65):(3/2-64/48-96/42)

Answer 1

84/144 = 7/12                                225/60 = 15/4                                 169/65 = 13/5

                     64/48 = 4/3                                   96/42 = 16/7

( 7/12 - 15/4 - 13/5 ) : ( 3/2 - 4/3 - 16/7 )

= -173/30 : -89/42

= 1221/445

Answer 2

84/144 = 7/12;225/60 = 15/4;169/65 = 13/5;64/48 = 4/3;96/42 = 16/7

( 7/12 - 15/4 - 13/5 ) : ( 3/2 - 4/3 - 16/7 )

= -173/30 : -89/42

= 1221/445