1- [ 10 supra 63 + ( 5 supra 42 - 1 supra 18 ) + 2 supra 21]

Răspuns :

1-(10/63+15-7/126+2/11)
1-(10/63+8/126+2/11)
1-(10/63+4/63+2/11)
1-110+44+126 (totul)/693
1-280/693
1-40/99
99-40/99
59/99
1-[10supra63 +(4supra24-2supra21)]=
1supra1-(10supra63+6supra45)=
1✖ 108=108
1✖ 108=108
108supra108-16supra108=92supra108