1) 31 10/50 - 43/50 = 30 60/50 - 43/50 = 30 17/50
2) 1517/50 : 4,1 = 1517/50 * 10/41=(37*10) /50= 37/5 = 74/10 = 7,4
1) 31 10/50 - 43/50 = 30 60/50 - 43/50 = 30 17/50
2) 1517/50 : 4,1 = 1517/50 * 10/41=(37*10) /50= 37/5 = 74/10 = 7,4