Question

What is the correct order for `-1\frac { 2} { 5} ,( - 1) ^ { 2} ,- 1.4 and ( \frac { 1} { 2}^2 )`?

Answer 1

`-1 2/5," "-1.4," "1^2/2," "1`

Explanation:

Convert them into the same form. Decimals are easiest to compare.

`-1 2/5," "(-1)^2," "-1.4," "(1^2)/2`

`=-1.4," "+1," "-1.4," "0.5`

The two negative values are equal and are the smallest.

`-1 2/5," "-1.4," "1^2/2," "1`