Răspuns:
Explicație pas cu pas:
a)1/9+2/3×(3-2)/12=1/9+2/3×1/12=1/9+1/18=(2+1)/18=3/18=1/6
b) 3/10-2/5×(7-2)/10=3/10-2/5×5/10=3/10-2/10=1/10
c) 4/5[1/2+1/2(2-1)/4]=4/5(1/2+1/8}=4/5×5/8=1/2
d)[4/3-2/3(5+2)/6]·3/10=(4/3-7/9)·3/10=(12-7)/9·3/10=1/6
e) [1/5+(8-4)/40·3]·2/3=(1/5+3/10)·2/3=5/10×2/3=1/3
f) [1-1/4×5/4×8/15+1/3]×6/5=(1-1/6+1/3)×6/5=(6-1+2)/6×6/5=7/5
