Grids do not parse Egypt's numeration systems. the Old Kingdom's binary infinite series, or the Middle Kingdom's finite system shared with classical Greeks, Hellenes and Arabs until 800 AD.
To directly parse square root and its numeration system from any culture, math facts must be understood in precise details, decoded from ancient texts.
Middle Kingdom Egyptians and Greeks scaled rational numbers by finding an LCM m such that
n/p x m/m = mn/mp
The best divisors of mp were selected that best summed to numerator mp.
Egyptians stressed 1/p and 2/p conversions to teach students to convert n/p to concise unit fractions, series. There are 10 or more ancient texts that describe this system.
Available Greek era texts offer n/p tables thereby included 1/p, 2/p ... (n-1)/p conversions. For example, an implici Hibeh Papytrust n/45 table written in 300 BC may be of interest .. TRIVIAL LCM 1, 2 AND 4. MAKE THE NUMERATIONS SIDE OF THE TEXT