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Paha777 [63]
3 years ago
13

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

Mathematics
2 answers:
pishuonlain [190]3 years ago
7 0
If you do 2 X 10, it's 20.
if you do 3 X 10, it's 30.

so, the fraction would be 20/30, and with the denominators the same, now you can see that 21 is greater than 20.

hopes this helps (:
Luba_88 [7]3 years ago
3 0
Simple.

to figure out if they are either: equal, greater, or smaller...

First, find a common denominator...

\frac{21}{30}

and

\frac{2}{3} * \frac{10}{10} = \frac{20}{30}

Now, we can obviously make the assumption that \frac{21}{30} is greater than \frac{20}{30}.

Thus, your answer. 

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