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I have two questions, firstly, what is 21 as a proportion of 510 (expressed as a decimal), and secondly, what is 66 as a proportion of 510 (expressed as a decimal)?

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1 Answer

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$(1)$ Simplify/divide out $\dfrac {21}{510}$

$(2)$ Simplify/divide out $\dfrac{66}{510}$.

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