При х=18,2, у=7 1/13
15 1/6 :х+0,13у=91/6 : 18 1/5 +13/10 * 92/13=91/6 * 5/91+92/10=5/6+9 1/5=25/30+9 6/30=9 31/30=10 1/30
при n=97.8, m=31 1/3
n : 21 6/23 - 1/47 m=97 4/5 : 21 6/23 - 1/47 * 31 1/3=489/5 * 23/489 - 1/47 * 94/3=23/5 - 2/5=4 3/5 - 2/5=4 1/5=4,2
при c=67 1/7, d=33.4
c : 1 3/7 - d : 8 15/19=67 1/7 :1 3/7 - 33,4 :8 15/19=470/7 * 7/10 - 167/5 * 19/167=47 - 19/5=47 - 3 4/5=47-3,8=43,2