1) a) [3/4+2/3:1/4]×6/41 =
= (3/4+2/3×4)×6/41=
=(3/4+8/3)×6/41=
=(9/12+32/12)×6/41=
=41/12×6/41=
=1/2
b) [7/5:14/15+3/2:(9/4-3/2)]×2/7=
=[7/5:14/15+3/2:3/4]×2/7=
=(7/5×15/14+3/2×4/3)×2/7=
=(3/2+2)×2/7=
=7/2×2/7=
=1
c) [17/3+14/9-2]:47/3=
=[51/9+14/9-18/9]:47/3=
=47/9:47/3=
=47/9×3/47=
=1/3
d) [4+20/3-9/4(2/3-2/9)]:29/6+29/4=
=[4+20/3-9/4×4/9]:29/6+29/4=
=[4+20/3-1]:29/6+29/4=
=[12+20-3/3]:29/6+29/4=
=29/3:29/6+29/4=
=29/3×6/29+29/4=
=2+29/4=
=8+29/4=
=37/4=
=9.25
