Rye bread contains 3/250 fat, 13/25 protein, and 9/20 carbohydrates. butter contains 4/5 fat, 1/250 protein, and 1/200 carbohydrates. how much fat, protein, and carbohydrates are in 5kg of bread, and how much is there in 500g of butter?

Rye bread contains > 3\250 fat >*(2/2)=6/500
                                                 13\25 protein >*(20/20)=260/500
                                                 9\20 carbohydrates > *(25/25)=225/500
 Butter contains      > 4\5  fat >*(100/100)=400/500
                                                 1\250 protein >*(2/2)=2/500
                                                 1\200 carbohydrates > *(25/25)=25/500
 The answers are
 1)     5 kg of Rye breadfat >5*(6/500)=0.06 kg
                                                protein >5*(260/500)=2.60 kg
                                          carbohydrates >5*(225/500)=2.25 kg
 
 2)     500 g of butter fat >500*(400/500)=400 g
                                                   protein >500*(2/500)=2 g
                                           carbohydrates >500*(25/500)=25 g

40 & 50 in the right corner are the complementary angles as when placed in a sum (added together) they make 90°