Evaluate
\frac{3}{10}=0.3
Factor
\frac{3}{2 \cdot 5} = 0.3
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\frac{3\times 18}{15\times 15-45}
Add 15 and 3 to get 18.
\frac{54}{15\times 15-45}
Multiply 3 and 18 to get 54.
\frac{54}{225-45}
Multiply 15 and 15 to get 225.
\frac{54}{180}
Subtract 45 from 225 to get 180.
\frac{3}{10}
Reduce the fraction \frac{54}{180} to lowest terms by extracting and canceling out 18.
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