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0-45\times \frac{1}{5}=21
Multiply 0 and 2 to get 0.
0-\frac{45}{5}=21
Multiply 45 and \frac{1}{5} to get \frac{45}{5}.
0-9=21
Divide 45 by 5 to get 9.
-9=21
Subtract 9 from 0 to get -9.
\text{false}
Compare -9 and 21.
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