To simplify the fraction 12/21, you'll want to find the greatest common divisor (GCD) of the numerator (12) and the denominator (21), and then divide both by that GCD.
The factors of 12 are , 1 , 2 , 3 , 4 , 6 , 12 .
The factors of 21 are , 1 , 3 , 7 , 21 .
The largest number that appears in both lists is 3, so the GCD of 12 and 36 is 3.
12 ÷ 3 = 4
21 ÷ 3 = 7
So, the simplified form of 12/21 is 4/7.
The fraction 12/21 is equivalent to 4/7 when simplified.
twelve over 21
four seventh
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Our tool uses advanced algorithms to find the greatest common divisor (GCD) of the numerator and denominator. It then divides both numbers by the GCD to obtain the simplified form.