1) 2 3\4 + 0.15 = 11\4 + 3/20 = 55\20 + 3\20 = 58\20
2) 58\20 : 4\5 = 58\20 * 5\4 = 58\16
3) 34.17 : 1.7 = 20.1
4) 20.1 + 58\16 = 201\10 + 58\16 = 23.725
5) 23.725 - 23 3/8 = 0.725 - 3\8 = 29\40 - 3\8 = 29\40 - 15\40 = 14\40 = 7\20
