Question

Zadanie 1 dam naj proszę o pomc

Answer 1

[(3/5 - 3/5* 3 1/4) +(-3/5)]/[-2 1/7* 2 1/3]=
[(3/5 -3/5* 13/4) - 3/5]/[-15/7* 7/3]=
[(3/5 - 69/20)-3/5]/(-105/21]=
[(12/20-69/20)-12/20]/(-105/21]=
(-69/20)/(-105/21)=
69/20 * 21/105=
1449/2100=
207/300=
69/100
teraz 3/4 z liczby powyżej
69/100* 3/4 =
207/400