Răspuns :
Explicație pas cu pas:
A) (2x4+1)/4 : (3x5+2)/5=9/4:17/5=9/4 x 5/17= 45/68
B) 18/5+(6 x 5+3)/5=18/5+33/5=51/5
C)8/27 :16/3= 8/27 x 3/16= 1/9 x 1/2= 1/18
Se reduce 8 si 16 si ramane 2
Si 27 si 3 si ramane 9
D)se reduce 3 cub3 si ramane 1 si 2 cu 4 si ramane 2
1/1 x 1/2 + 5/6=1/2 + 5/6 = ((3x1)+5)/6 =8/6 =4/3
Numitor comun 6
Simplifcam cu 2