George is comparing the sizes of two different phones. the screen of phone a has a width of 5.3 cm. the width of the screen on phone b is 5 1/3cm. which statement explains which phone has the wider screen.

To answer this question, you need to makes the unit of the smartphone screen same. In this case, phone A is using decimal and phone B is using a fraction. You can use which was easier.
Let's try to use decimal. Then you need to convert phone B fraction width into decimal width. The calculation would be: 5cm + 1/3cm= 5 cm + 0.333cm= 5.333cm
From here it clear that phone B has a wider screen than phone A.