<p>If you are considering graduate school in Mathematics, or the the BS/MA plan ([Merit</a> Track in Mathematics](<a href=“Undergraduate Program | UCLA Department of Mathematics”>Undergraduate Program | UCLA Department of Mathematics)), it would be a good idea.</p>
<p>But not at the same time. 115A and 131A at the same time is doable and challenging. 115AH and 131AH at the same time would be very challenging, unless those were your only two courses/your third course was an easy A.</p>