1) 18.3 : 1\2 = 183\10 * 2 = 366\10 = 36.6 2) 18.3 : 1\3 = 183\10 * 3 = 549\10 = 54.9 3) 18.3 : 1\5 = 183\10 * 5 = 915\10 = 91.5 4) 18.3 : 1 = 18.3