Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,263

Does anyone know how to add these fractions?

I believe making them in form isn’t the correct approach.

Is there anything we can cancel out?

*Last edited by Monox D. I-Fly (2018-05-14 13:52:24)*

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**Grantingriver****Member**- Registered: 2016-02-01
- Posts: 96

I assume that you mean:

If so, the argument goes as follows:

The use of "i" instead of "k" in the last step is valid since "i" and "k" are dummy variables. I hope that will answer your question.

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