You're on the right track, but let's refine the definitions to be more precise and applicable to common electrical calculations. "Major Fraction Thereof": This phrase, when used in electrical codes and calculations, generally means if the decimal part of a result is greater than or equal to 0.5, you round up to the next whole number. Think of it as anything 0.5 or above "tipping the scales" to require an additional item (like an outlet, overcurrent device size, etc.). "Fraction Thereof": This phrase means the fractional portion, or decimal part, of a number. What to do with that fraction depends on the context. Typically, in electrical calculations, it means any fraction, even a tiny one, might require some action, but it doesn't automatically mean round up to the next whole number. It might trigger a specific rule, add complexity to the calculation, or need further consideration. Crucially, "fraction thereof" by itself does not necessarily mean you round up. It just means that the fractional portion matters for something. You must look at what the rule or calculation is requiring to see how that fraction impacts the final result. Flag for review