Three parts of nitrogen and five parts of phosphorus were mixed as a fertilizer for farmer ted’s pasture. which fraction represents the ratio of nitrogen in farmer ted's fertilizer?

Given that Ted's fertilizer is three parts nitrogen and five parts phosphorus, this fertilizer is 8 parts of both. The fraction that represent the ratio of nitrogen in Ted's fertilizer is 3 divided by 8. That is,
                                ratio = 3/8
Thus, from the given choices, the answer would be letter B. 

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