It is: 345/409 = 0.8435207824 to 10 decimal places or 0.844 rounded to 3 decimal places
345 written as a decimal is 345. There is no change.
409 = 409/1
.345
345% = 3.45 as a decimal. And there is really no simplest form for decimals.
3.45
345
Rounded to two decimal places, the square root of 345 is 18.57.18.574175
0.345
CDIX = 409 and XCV = 95, so 409 + 95 = 504 (DIV)
There are 0.3048 metres in one foot. Therefore, rounded to two decimal places, 345 metres is equal to 345/0.3048 = 1131.89 feet.
345/734 = 47.0027%
77/345 = 22.3188%