Question

4-1 trei supra zece: (3+ doi supra cinci : 1 trei supra 5 )

Answer 1

4- 1 3/10 :( 3 + 2/5 : 1 3/5)=
=4- 13/10 :( 3 + 2/5 : 8/5)=
=4- 13/10 :( 3 + 2/5 × 5/8)=
=4- 13/10 :( 3 + 2/8)=
=4- 13/10 :( 3 + 1/4)=
=4- 13/10 :( 12+ 1)/4=
=4- 13/10 : 13/4=
=4- 13/10 × 4/13=
=4- 4/10=
=(40-4)/10=
=36/10=
=18/5=
=3,6