Question

cuanto es  30+1/2 x70x144

Answer 1

30+1/2×70×144=
(30+1/2)×(70×144)=
((30×2+1)/2)×(70×144)=
(61/2)(70×144)=
61×35×144= 307.440

Answer 2

30+1/2 x 70 x 144 = 5070