Tan Xin Rong's answer to Camilla's Primary 6 Maths Ratio Singapore question.

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Tan Xin Rong
Tan Xin Rong's answer
3 answers (A Helpful Person)
1st
I hope u understand how i got the fraction for Helen and Fann, after erina buys 5/12 of the total, the leftover is 12/12-5/12= 7/12.


and when u add up the ratio, 3+4=7 also.
so i can determine that fann (3 units) and helen (4 units)
makes up exactly 7 units

contact @filthycreampie on Insta if u still dun getit. im really boliao so ima help u. sleep well boi