Raine's answer to Cheryl's Secondary 3 A Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Raine
Raine's answer
245 answers (A Helpful Person)
Make all the numbers have a common base. In this case, the common base is 3.
Recall: a^b/a^c = a^(b-c)
Hope this helps!