¾+¼-¹¹/¹³

To solve this expression, let's break it down step by step:

First, we'll simplify ¾ + ¼. 3/4 + 1/4 = 4/4 Since the numerator and denominator are the same, this simplifies to 1.

Now, let's subtract 1/11 from our result: 1 - 1/11 = 11/11 - 1/11 This simplifies to 10/11.

Finally, let's divide our result by 1/13: (10/11) / (1/13) = (10/11) * (13/1) This simplifies to (10 * 13) / (11 * 1) The numerator becomes 130 and the denominator remains 11, giving us a final result of 130/11.

So, the expression ¾ + ¼ - ¹¹/¹³ simplifies to 130/11.