Reuben Ngiau Jia Wen's answer to Hii's Secondary 2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Reuben Ngiau Jia Wen
Reuben Ngiau Jia Wen's answer
23 answers (Tutor Details)
1st
This is just ratio and conversion