Question

VA ROGGGGGGGGGGGGGG multttt ;-;

Answer 1

i)8/3-(14/20-1/15):3/10-8/15=
=8/3-(7/10-1/15) ×10/3-8/15=
=8/3-(21/30-2/30) ×10/3-8/15=
=8/3-19/30 ×10/3-8/15=
=(120-95-24)/45=
=1/45


j) 6/24+1/6-(15/6-3):3/2=
= 1/4+1/6-(15-18)/6 × 2/3=
= 1/4+1/6+3/6 ×2/3=
= 1/4+1/6+1/3=
=( 3+2+4)/12=
=9/12=3/4

5.a)
(1/4+0,67+5/2):0,2=
=(1/4+67/100+5/2): 1/5=
=(25+67+250)/100 × 5=
=342/100 × 5=
=342/20=17,1



5.b)
(3/4)/0,16+2,5:2=
=(3/4)/(16/100) +25/10 :2=
=(3/4)/(4/25) +5/2 ×1/2=
=3/4 × 25/4 +5/4=
=75/16 +5/4=
=(75+20)/16=
=95/16=5,9375