Question:

Can you Explain how you know 21/30 is greater than 2/3?

Answer:

To compare fractions that have different denominators we must convert them all to a set of fractions that have the same denominator. The lowest common denominator is 30. So, the equations would be 21/30 and 20/30. Therefore 21/30 is greater than 20/30.

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Mathematics Arithmetic Numbers Fractions Division Education
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