Помогиие пожалуйста номера 416 ,417 419.

2\3х = 48 х = 48*3\2 = 72 3\4х = 84 х = 84*4\3 = 112 3\5х = 60 х = 60*5\3 = 100 4\6х = 72 х = 72*6\4 = 108 5\8х = 160 х = 160*8\5=  256 3\10х = 990 х = 990*10\3 = 3300 7\12х = 84 х = 84*12\7 = 144 1.2х = 38 х = 38*2\1 = 76 75 = 3\5х х = 75*5\3 = 125 1\3х = 75 х = 75:1\3 = 75*3\1 = 225 1\8х = 75 х = 75*8\1 = 600 1\4х = 75 х = 75*4\1 = 300 1\10х = 75 х = 750 1\5х = 75 х = 75*5\1 = 375 1\12х = 75 х = 75*12\1 = 900 1\6х = 75 х = 75*6\1 = 450 1\15Х = 75 Х = 75*15\1 = 1125