Hello My name is Carol I am a student teacher! I am asked to aproach these students on their problems. I am unsure of how to explain to them that these are wrong. Can you help? Thanks.

Iris claims that if we have two positive rational numbers, the one with the greatest numerator is the greatest.

Shirly claim that if we have two positive rational numbers, the one with the greatest denominator is the least. Thanks!

You have a great opportunity to make some money.

Ask Iris to give you 1/2 of a dollar, and you will give her back 1/4 of a dollar. According to her own claim, she will benefit from this trade.

Even better! Ask Shirley to give you 9/10 of a dollar, and you will give her back 1/2 of a dollar. Make sure she thanks you.