7/9 = 0.778
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9 and 12 hundredths in decimal notation = 9.12
The bar notation of 0.7777 is written as 0.7 with a bar over the digit 7, indicating that the digit 7 repeats infinitely. This can be represented as 0.7¯, where the bar extends over the 7 to show that it repeats indefinitely. In mathematical notation, this is equivalent to the fraction 7/9, as the repeating decimal 0.7777 can be expressed as 7 divided by 9.
The number is 58149737003040059690390169, and in scientific notation: 5.8149737 X 1025 upto 7 decimal digits..
To divide by a fraction, multiply by its reciprocal. In this instance, 9/5 / 9/7 = 9/5 x 7/9 = 63/45 or sixty-three forty-fifths. Expressed as a decimal, this is equal to 1.4.
7/9 as a fraction becomes 0.777... as a decimal . It repeast to infinity. NB The three dots/stops/periods at the end of the decimal, indicate to mathematicians that it is a decimal repeating to infinity.