Răspuns:
a).
11/45 +(5/8+31/41)+34/45+(3/8+10/41)
Iar aici am folosit proprietatea asociativa
(11/45 + 34/45) + (5/8 + 3/8) + (31/41 + 10/41)
Iar după am simplificat: 45/45 + 8/8 + 41/41 = 1 + 1 + 1 = 3
b).
(6/9+35/48)+3/9+(17/39+13/48)+22/38
Aici am folosit la fel proprietatea asociativa ca la prima
(6/9 + 3/9) + (35/48 + 13/48) + (17/39 + 22/38)
Iar dupa am simplificat la fel ca prima si gata .
9/9 + 48/48 + 39/39 = 1 + 1 + 1 = 3
