Explanation of 7/21 Fraction to Decimal Conversion. To convert 7/21 to decimal you need simply divide numerator 7 by denominator 21. The result of the division is: 7 ÷ 21 = 0.33333333333333 Since the remainder has a repeating pattern (3) which repeats after every 1 digits, so we can write the repeating decimal as: 0. 3 or 0. Any terminating decimal can be converted to a fraction by counting the number of decimal places, and putting the decimal's digits over 1 followed by the appropriate number of zeroes. For example: \small { 0.46 = \dfrac {46} {100} = \dfrac {23} {50} } 0.46= 10046 = 5023. The decimal had two decimal places, so I moved the dot two units to the Also if you want to calculate high powers, for example, 2^1000, it may be quicker to calculate 2^100, then take that result and raise that to the power 10: (2^100)^10 *Full Precision. Most calculations are done to full precision. But some decimals go on forever (such as 1/3 = 0.33333), so we stop after 200 decimals. Multiply the remaining decimal by 60. 0.742*60 = 44.52, so the whole number 44 equals minutes. Multiply the remaining decimal by 60. 0.52*60 = 31.2, so the whole number 31 equals seconds. Decimal degrees 156.742 converts to 156 degrees, 44 minutes and 31 seconds, or 156° 44' 31". Be sure to follow math rules of rounding when calculating Writing Decimal Numbers in the Decimal Place Value Chart. Decimal number may contain a whole number part and a fractional part (decimal part). In case the decimals consist of only one part that is a decimal part or the whole part, we will write zero in the whole or decimal part. For example: $.23 = 0.23$ $42 = 42.0$ 21 ⁄ 5 is already simplified. What is 21 / 5 as a decimal? 4.2 (exact) What is 21 / 5 as a percentage? 420%. What is 21 / 5 as a mixed number? 21 ⁄ 5 = 4 1 ⁄ 5. What is 21 / 5 spelled out? I suppose it might mean that the OP is using decimal.Decimal and is unhappy with decimal context's precision which limits precision to n digits as in "n digits of precision in the strict sense" (e.g. '123.456' becomes Decimal('1.2E+2')) and not "n digits in the fractional part" (for Decimal('123.45')) wonC9a.

21 2 as a decimal