What's the formula for land

1 mu = 60 square feet = 6000 square feet, 1 mu = 666.6 square meters. Root search, however, there is a more practical solution to calculate in the Folk: square meters for mu, the calculation formula is "plus half left three". 1 square meters = 0.0015 mu, such as 128 square meters equal to how many mu? The calculation method is to use 128 plus 128 half: 12