And then it's easy to make them see how her answer was right in its own way by adding another unit, (person at table a+b and people at table a+b) and show why it may be harder to works like that for now.
I heard so many people complains that each year in maths they would essentially learn that everything they learned the year before was wrong... can we fix that please?!
Re:Can 1/3 and 1/3 = 2/6? It seemed so
by matt-attack on Thursday May 28, 2020 @11:31AM
(#23338467)
Why? Each is a pure number without units. Since the units cancel in each term.
1 (person at table A) / 3 (people at table A) can't be added to 1 (person at table B) / 3 (people at table B) without conversion of units.