Harshaana's answer to Tai jia xuan's Primary 5 Maths Fractions Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Harshaana
Harshaana's answer
55 answers (Tutor Details)
1st
As found on: http://www.onsponge.com/forum/35-thinkingmath/12573-p5-maths

It uses a Guess-and-check method as well as a little logical reasoning. Hope it helps.