One and 9 sixteenth.........is the same as 5/4 times 5/4.........which is like......125 times 125..........................25/16..............is one and 9/16...............take 1.........u KNOW that that is how the answer will start...............................9/16 is........................0.5625........of course I used a calculator for that.....................15625 is what 125 times 125 is.................the same kind of thing for 3/2 times 3/2.............one and a half times one and a half.........................as in........15 times 15........just adjust for the decimal.............9/4................there are 2 and 1/4 in nine fourths.........the answer has to start with 2........................and just add 1/4.(which is 0.25).......to 2.......................................thus 2.25...............b/c there are two decimal places in 1.5 and 1.5...............

9 / 16 =

0.5625