a. |...|...|...|
b. |...|...|...|...| } in total 84
3+4=7 segmente egale
84=7 segmente
84:7=12 ( un segment )
12×3=36 ( primul număr )
12×4=48 ( al 2 lea număr )
probă :
36+48=84
36:3=48:4
12=12
⅓=¼
a/---/---/---/ }84
b/---/---/---/---/
84:7=12
12×3=36(a)
12×4=48(b)
