rozwiąż ułamki ; 1 i 3-7 + 2 i 6-7 = 10i1-3 - 3 + 4i 2-9 razy 6 10-21 podzielić na 3 i 3 - 14

1 i 3-7 + 2 i 6-7= 3 i 9-7=4 i 2-7 10i 1-3 - 3= 7 i 1-3 4i 2-9 razy 6= 25,33333 ( 25 i 1-3) 10-21 podzielić na 3 i 3 - 14= 10-21/45-14= 148-1000= 74-500=37-250   chyba dobrze bo napisales nie rozno i troche zle

1 3/7 + 2 6/7 =3 9/7 = 4 2/7 10 1/3 -3 +4 2/9 x 6 = 7 1/3 + 38/9 x6 =7 1/3 +76/3 =7 1/3 +25 1/3 =32 1/3 10/21 :3 3/14 =10/21:45/14 =10/21 x 14/45 = 4/27