PoppyPup wrote:
Hi All,
My DD is in year 6 and she is struggling with a particular maths question.
Normally I can help her without any problems but I am looking for an easier way to solve the problem below.
We usually complete these by finding the LCM and making the denominator the same and adjusting the numerator.
The whole of her Maths table struggled with this and teacher came to help and said the LCM is 840 and they could then continue but it does seem odd for a Yr 6 q.
Amy help on how to solve this type of problem quicker when the LCM is a high number.
Q. Arrange these in ascending order
2/6, 1/5, 2/7, 1/4
Thank you.
Make denominator same, to do this find LCM of 6,5,7,4. LCM is 420, not 840. Once denominator is same, you can compare numerator and put accordingly in
OR
you can convert fraction into decimals and compare. This is more easier way if child find difficulties in LCM.