Add 8/27 and 1/21
8/27 + 1/21 is 65/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
8/27 = 8 × 7/27 × 7 = 56/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
1/21 = 1 × 9/21 × 9 = 9/189 - Add the two like fractions:
56/189 + 9/189 = 56 + 9/189 = 65/189 - So, 8/27 + 1/21 = 65/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/27+1/21 8/27+2/21 8/54+1/21 8/27+1/42 24/27+1/21 8/27+3/21 8/81+1/21 8/27+1/63 40/27+1/21 8/27+5/21 56/27+1/21 8/27+7/21