You have to order the given values from least to greatest.
The first step is to express all values as decimal values, this way you find it easier to order them.
To express two thirds as a decimal value, you have to divide 2 by 3
To express a percentage as a decimal value you have to divide the percentage by 100
To express seven-tenths as a decimal value, you can divide 7 by 10
So the values expressed as decimal values are:
To order them from least to greatest you have to look at the decimals, the closer the value is to 1 the greater it will be, and the values closer to zero will be the smallest.