2 2/5:3 1/3=x:3.5 и 20-18.6:(6 11/15-4 3/20) и 1/6x-3/8x=-1.37+0.82 и 7.6:x=2 1/9:2 4/9 gkbpppppppppppppppppppppppppp

2 2/5:3 1/3=x:3.512/5:10/3=x:3.512/5*3/10=x:3.536/50=x:3.518/25=x:3.5х=18/25*3,5х=63/25х=2,5220-18.6:(6 11/15-4 3/20) =12,8по действиям6 11/15-4 3/20 =2 11/15- 3/20 =2 44/60- 9/60 =2 35/60=2 7/1218,6:2 7/12=18 6/10: 31/12=18 3/5*12/31=93/5*12/31=3/5*12/1=36/5==7 1/5=7,220-7,2=12,81/6x-3/8x=-1.37+0.824/24x-9/24x=-0,55-5/24х=-0,555/24х=0,55х=0,55:5/24х=0,55*24/5х=0,11*24/1х=2,647.6:x=2 1/9:2 4/9 х=7,6*2 4/9:2 1/9х=7,6*22/9:19/9х=7,6*22/9*9/19х=7,6*22/1*1/19х=0,4*22/1*1/1х=8,8