Step-by-step explanation:
Convert all values into decimals for convenience.
77% = 0.77
0.077
7/8 = 0.875
9/10 = 0.9
Order these in descending order (from greatest to least) by looking at the number after the decimal point. If the number after the decimal point is higher, the value of the number is higher.
The order is:
9/10, 7/8, 77%, 0.077