Asked by Jordan

A student claims that 2/3 = 6/7 because if you add 4 to both the top and the bottom of a fraction, the fraction does not change. How do you respond?

I am a bit confused. Don't you need to have a common denominator?
Answered by Writeacher
http://www.mathsisfun.com/equivalent_fractions.html

Note that you need to use division or multiplication, not addition, to form or identify equivalent fractions.
Answered by Jordan
The link you posted made it clear! Thank you Thank you!
Answered by Writeacher
You're very welcome!
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