Helga Togatorop's answer to Lee xie loong's Secondary 3 E Maths question.

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Helga Togatorop
Helga Togatorop's answer
3 answers (Tutor Details)
Personally, for (a) I prefer to make the right hand side to be the same denominator then cross multiply.

for (c) I prefer to make the denominator the same first, then cross multiply. Then bring all the term to one side