Add 8/21 and 1/27
8/21 + 1/27 is 79/189.
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,
8/21 = 8 × 9/21 × 9 = 72/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
1/27 = 1 × 7/27 × 7 = 7/189 - Add the two like fractions:
72/189 + 7/189 = 72 + 7/189 = 79/189 - So, 8/21 + 1/27 = 79/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21+1/27 8/21+2/27 8/42+1/27 8/21+1/54 24/21+1/27 8/21+3/27 8/63+1/27 8/21+1/81 40/21+1/27 8/21+5/27 56/21+1/27 8/21+7/27