Nomor 81 - 85 pake cara.. Tolong bantuin Besok dikumpulin Makasih..

81. A/2+A/3= 3A/6 + 2A/6= 5/6A
82. 3/8p + 11/6p = 9/24p + 44/24p = 53/24p = 2 5/24p
83. 3a+3-4a+4/12= 7-a/12
84. 5y-10+12-3y/15= 2y+2/15 = 2(y+1)/5
85.3/3a= 1/a