tolong jawab 14&15 dong besok di kumpul

14. ikan mas = 5/4+5 x 810 = 5/9 x 810
                                            = 450              
                                                               jawabannya c. 450

15. 2 ton - 12 kuintal - 250kg = 2.000kg - 1.200kg - 250kg
                                              = 550kg
                                                               jawabannya c. 550kg