40/33
120/99
0.1818
-1.21 = -121/100 and reduces to: -1 21/100
21/99
Let P = 0,212121,,,, Hence 100P = 21.212121.... Subtract 99P = 21 (NB The repeating decimals subtract to zero. P = 21/99 Cancel down by '3' P = 7/33 The answer!!!!
matt
21/50 = 0.42
21/99
It is 40/33 as an improper fraction in its simplest form
It is 0.9130434782608695652173 with the underlined string repeating forever.
Yes, 13.'21' repeating is a rational number because it can be expressed in the form of a fraction as 436/33
To find the fractional form for a completely repeating fraction, the numerator will be the repeating number and the denominator will be a number of nines equal to the amount of digits in the repeating number. Reduce if possible. Example: .121121121... = 121/999 .1212121212... = 12/99 = 4/33 .66666666... = 6/9 = 2/3 Hope that helped!