Question

[(5pe 6 - 3 pe 8 ) :3 pe 4 -(3 pe 8+ 7 pe 20):(1intreg 9 pe 20)]:1pe 50
ajutatima imi trebuie urgent

Answer 1

[(5/6-3/8)·4/3-(3/8+7/20):29/20]·50=
=[(20/24-9/24)·4/3-(15/40+14/40)·20/29]·50=
=11/24·4/3-29/40·20/29]·50=
=(11/18-1/2)·50=
=(11/18-9/18)·50=
=2/18·50=1/9·50=50/9=5 5/9=5,(5)