2 3/4:(-2/5+1 1/2)-(-3/4-5/6)/3 1/6

Question

2 3/4:(-2/5+1 1/2)-(-3/4-5/6)/3 1/6

Answer 1

2 3/4+(-2/5+1 1/2)-(3/4-5/6)+3 1/6=11/4:(-2/5+3/2)-(19/12):19/6=11/4:11/10+19/12*6/19=11/4*10/11+1/2=1/2*5+1/2=5/2+1/2=3

Comments

А МОЖНО по действием