Răspuns:
a. 5/8+7/8=(12/8)⁽⁴=3/2
b. ⁶⁾1/2-5/12=6/12-5/12=1/12
c. 2/3·(⁾⁴1/6+5/24)=
2/3·(4/24+5/24)=
2/3·9/24=1/4
d. ⁷⁾4/5+6/35=28/35+6/35=34/35
