Add 6/21 and 24/27
6/21 + 24/27 is 74/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
6/21 = 6 × 9/21 × 9 = 54/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
24/27 = 24 × 7/27 × 7 = 168/189 - Add the two like fractions:
54/189 + 168/189 = 54 + 168/189 = 222/189 - 222/189 simplified gives 74/63
- So, 6/21 + 24/27 = 74/63
In mixed form: 111/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+24/27 6/21+48/27 6/42+24/27 6/21+24/54 18/21+24/27 6/21+72/27 6/63+24/27 6/21+24/81 30/21+24/27 42/21+24/27