Question

Rozwiąż zadanie : na jutrooooo UŁAMKI: a)10 1/6 - (12 3/4 - 7 5/6) - 3 1/2 =?????? b) 1 3/4 + (99 7/20 - 89 2/5) - 1 1/2=??????? PILNE PROOOOOOOOOOOOSZZZZE DAJE NAJ......

Answer 1

a) (12 3/4 - 7 5/6) - 3 1/2 = (12 9/12 - 7 10/12) - 3 6/12 = 4 9/12 - 3 6/12 = 1 3/12

b) 1 3/4 + (99 7/20 - 89 2/5) - 1 1/2 = 1/4 + 9 1/20 = 9 6/20 = 9 3/10

Answer 2

a)

10 i 1/6 - ( 12 i 3/4 - 7 i 5/6) - 3 i 1/2 = 

10 i 1/6 - ( 51/4 - 47/6) - 3 i 1/2 =

10 i 1/6 - ( 153/12 - 94/12) - 3 i 1/2 =

10 i 1/6 - 59/12 - 3 i 1/2 = 

61/6 - 59/12 - 7/2 = 

122/6 - 59/12 - 42/12 = 21/12 = 1 i 9/12 = 1 i 3/4 

 

b) 

1 i 3/4 + ( 99 i 7/20  - 89 i 2/5 ) - 1 i 1/2 = 

1 i 3/4 + ( 1987/20 - 1788/20 ) - 1 i 1/2 =

1 i 3/4 + 199/20 - 1 i 1/2 =

1 i 3/4 + 9 i 19/20 - 1 i 1/2 =

1,75 + 9,95 - 1,5 = 11,7 - 1,5 = 10,2