Question

quanto é?

5×(1-½)
2×(¼-1)
(3+½)
(1+½-⅓)

Answer 1

5×(1-½)
5(2-1/2)5(1/2)= 5/2=2,5

2×(¼-1)
2×(1-4/4)2×(-3/4)=-6/4=-3/2
(3+½)
(6+1/2)=7/2=3,5
(1+½-⅓)
6+3-2/69-2/67/6