Question

Calculati: 3 supra 5+7 supra 10 -1 supra 2×3 intregi 1 supra 5

Answer 1

3/5+7/10/4-1/2•3 1/5= 3/12:10/1:4/1-1/2•16/5= 3/12•1/10•1/4-1/2•16/5= 1/4•1/10•1/4-1/1•8/5= 1/160-8/5= 1/160-256/160= -255/160= -51/32