Use 5, 4, 8 and 10 to calculate 24 points

Use 5, 4, 8 and 10 to calculate 24 points

5,4,8,10 from these four numbers, 24 is calculated
1:(8/10+4)*5.Fraction
2:(8-10/5)*4
3:((8+4)*10)/5
4:(4-8/5)*10.Fraction