SG chevron_right Primary 5 chevron_right Fractions

Can anyone help to solve this question?

SG chevron_right Primary 6 chevron_right Fractions

Need help here. Thanks!

SG chevron_right Primary 6 chevron_right Fractions

I have solved the problem using algebra method. G= 80 but can anyone shows me how to do e ratio our other method as I have difficulty explaining to my girl who doesn't understand algebra yet. Many thanks

SG chevron_right Primary 4 chevron_right Number and Algebra

If a boy needs 12 minutes to cut a log into 4 pieces, then how long will he take to cut it into 3 pieces?

SG chevron_right Primary 3 chevron_right Number and Algebra

Please tell me how to do the 2 questions