sentences:  Checking the work required the scribe to multiply the two-part number by 11 and showed the result 63/64 + 1/64 = 64/64, as all five proofs reported.The computations show several minor mistakes.For instance, in the 1/7 computations, formula_4 was said to be 12 and the double of that 24 in all of the copies of the problem.