Arithmetic means between mixed numbers

Insert 17 arithmetic means between $3 \frac{1}{2}$ and $- 41 \frac{1}{2}$ .

~4 minProof · checked by AIarithmetic progressionmeans

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. IV. Arithmetical Progression, Examples IV.a, No. 14

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