А)1 2/3- b=5/6 c+1 1/3=3 1/3+x=1 1/6 0,8-b=7/15 x : 0,2=1 1/3 a :2/3=3/4 б) 1 1/4 - b = 1/2 b * 5/7=1 7/12 +a=1 1/6 y-5/6=1/3 1 1/2 *a =6 7/8+ a= 1 1/4 c) y* 2/7=3/14 1 5/6 -y=2/3 c-0,6= 1/3 y*3/5...

а)5/3-b=5/6 -b=5/3-5/6 b=-5/6 с+4/3=3 с=3-4/3 с=5/3=1 2/3 1/3+х=7/6 х=7/6-1/3 х=5/6 -b=0,8-7/15 b=1/3 х:0,2=4/3 х=4/3*2/10 х=4/15 а=3/4*2/3 а=1/2 б) -b=5/4-1/2 b=-3/4 b=1:5/7 b=7/5=1 2/5 а=7/12-7/6 а=-7/12 у=1/3+5/6 у=7/6=1 1/6 а=6:3/2 а=4 а=5/4-7/8 а=3/8 с) у=3/14:2/7 у=3/4 -у=11/6-2/3 у=-7/6=-1 1/6 с=1/3+6/10 с=14/15 у=1/15:3/5 у=1/9 с=6/7:3/14 с=4 х=7/10+7/10 х=14/10=1 2/5 х=7/4:7 х=1/4 у=5/3:5 у=1/3