Subtract the lowest term from the highest term after converting them into Decimals :
25, 45, 516 and 23
0.13333
0.4
0.4875
0.277
25 = 0.4
45 =0.8
516 = 0.3125
23 = 0.6667
Highest term - lowest term = 0.8000 - 0.3125 = 0.4875
2/3×4
(Lowest term and make it into mixed fraction)