and not as ′′ nor as + / ′′. however for engineering purposes fractions are commonly given to three or four places of decimals and have been for many years. [ ] [ ] measuring tape calibrated in nds of an inch equivalences[ edit ] international inch is equal to: tenths [a] thou [b] or mil [c] points [...
but subtracting cannot uêêrecognise that addition and subtraction are inverse operations uêêlearn the multiplication and division facts for the x, x and x tables uêêshow that multiplying two numbers can be done in any order, but dividing cannot uêêsolve problems using the x and ÷ symbols fractions...