Hey there!
<h2>
<u>Question :-</u></h2>

We need to solve this arithmetic expression,as a fraction.
<h2>
<u>Solution:-</u></h2>

<em><u>Note that (+) and (-) equals to (-).</u></em>
<u>New Arithmetic expression will be :-</u>

<u>Remove the parenthesis :-</u>

<u>Calculating</u><u> </u><u>the </u><u>Subtraction:-</u>

As 310 < 720, 720 contains (-) sign. Therefore, The Solution will be -410 <em>not</em> 410.

<u>Converting to Fraction:-</u>



On Simplification of this Fraction:-

On Cancelling , -410 Is the result.

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<u>Henceforth </u><u>,</u><u> </u><u>the answer of the arithmetic expression Will be :-(Simplified)</u>

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I hope this helps!
Please let me know if you have any questions.
~MisterBrian