Question

calculati: (0,9-0,09+2):0,281 supra [0, (3)+0, (5)]×4,5=?

Answer 1

2,81:0,281 supra 1/3+5/9×4,5= 10 supra 1/3+2,5
10 supra 1/3+5/2 amplificãm fractiile cu 2 prima si 3 a doua
10 supra 2/6+15/6= 10 supra 17/6= 10×6/17= 60/17