First, before you add and solve, you need to make both denominators the same. So, multiply the numerator and denominator of 7/10 by 10 to get: 70/100. Now you should have:
<u> 23 </u> + <u> 70 </u>
100 100
Simply add the numerators to get 93/100. This cannot be simplified any further, so the final answer is:
