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 = 1/15 6/7:с= 3/14 х-7/10=7/10 b) 1 3/4 :x = 7 1 2/3 :y =5

а)5/3-b=5/6-b=5/3-5/6b=-5/6с+4/3=3с=3-4/3с=5/3=1 2/31/3+х=7/6х=7/6-1/3х=5/6-b=0,8-7/15b=1/3х:0,2=4/3х=4/3*2/10х=4/15а=3/4*2/3а=1/2б)-b=5/4-1/2b=-3/4b=1:5/7b=7/5=1 2/5а=7/12-7/6а=-7/12у=1/3+5/6у=7/6=1 1/6а=6:3/2а=4а=5/4-7/8а=3/8с)у=3/14:2/7у=3/4-у=11/6-2/3у=-7/6=-1 1/6с=1/3+6/10с=14/15у=1/15:3/5у=1/9с=6/7:3/14с=4х=7/10+7/10х=14/10=1 2/5х=7/4:7х=1/4у=5/3:5у=1/3