15 1/6 : x + 0,13y при x = 18,2 и y = 7 1/13

15 1/6 :18,2 + 0,13* 7 1/13 = 91/6 : 91/5 + 13/10 * 92/13 = 5/6 + 46/5 = 25/30 + 276/30=301/30=10 1/30