Question

2-[1supra3-(1supra6-1supra 12)]

Answer 1

2-(1/3-1/6+1/12)=
2-1/3+1/6-1/12=
Se aduce la numitor comun, 12.
(24-4+2-1)/12=21/12=7/4

Answer 2

2-[1/3-(1/6-1/12)]=
=24/12-[4/12-(2/12-1/12)]=
=24/12-(4/12-1/12)=
=24/12-3/12=21/12=7/4