Since no one has yet been able to prove the Ancient Egyptians were aware of inches, feet, meters or used any unit of measures other than the Royal Egyptian cubit and subsequent smaller units. The standard Ancient Egyptians cubit rod, to the Ancient Egyptians had a value of 1, a palm = 1/7 cubit, a digit 1/28 cubit and a digit divided into 16 subdivisions where each of the digit subdivision represents:
1/16 digit but also represents, 1/112 palm, 1/448 of a cubit:
1/15 digit, 1/105 palm, 1/420 cubit:
1/14 digit, 1/56 palm, 1/392 cubit:
1/13 digit, 1/91 palm, 1/364 cubit:
1/12 digit 1/28 palm, 1/336 cubit:
1/11 digit,1/77 palm, 1/308 cubit:
1/10 digit, /70 palm, 1/280 cubit:
1/9 digit, 1/63 palm, 1/252 cubit:
1/8 digit, 1/56 palm, 1/224 cubit:
1/7 digit, 1/49 palm, 1/196 cubit:
1/6 digit, 1/42 palm, 1/168 cubit:
1/5 digit, 1/35 palm, 1/140 cubit:
1/4 digit, 1/28 palm, 112 cubit:
1/3 digit, 1/21 palm, 1/84 cubit:
1/2 digit, 1/14 palm, 1/56 cubit
and the digit = 1/4 palm, 1/28 cubit.
Just like the 2/n tables of the Rhind Mathematical Papyrus there are logical implications regarding what it actually says. Sorry David, you are just making attributions beyond the mathematical abilities of Ancient Egyptians that simply can not exist within their system. Your mathematical arguments are much better fitted to Lost Civilization built the pyramids hypothesis, not Ancient Egypt.
If you should find your formula noted in unit fractions and hieroglyphs in a document dated to any Old Kingdom dynasty you will have the required proof that would satisfy even the most ardent skeptics.
Now if I were a betting man, based on past experience, I am sure any actual facts will not deter you.