Question

1)2 supra 3+2 supra 3:4 supra 3+1 supra 5
2)9:1 supra 9-80 intregi si 1 supra 9
3)(3 supra 4+5 supra 6-2 supra 3)x 12 supra 5

Answer 1

1) 2/3+2/3:4/3+1/5
=2/3+2/3*3/4+1/5=
=2/3+1/2+1/5=
=20+15+6/30
=41/30
2) 9: 1/9- 80 intregi 1/9
=9*9-721/9=
=81-729/9
=729-729/9=
=0/9=0
3) (3/4+5/6-2/3)*12/5=
=(9+10-8/12)*12/5=
=11/12*12/5=
=11/5=2,2