Add 1/7 and 9/27
1/7 + 9/27 is 10/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
1/7 = 1 × 27/7 × 27 = 27/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
9/27 = 9 × 7/27 × 7 = 63/189 - Add the two like fractions:
27/189 + 63/189 = 27 + 63/189 = 90/189 - 90/189 simplified gives 10/21
- So, 1/7 + 9/27 = 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7+9/27 1/7+18/27 1/14+9/27 1/7+9/54 3/7+9/27 1/21+9/27 1/7+9/81 5/7+9/27 1/7+45/27 1/35+9/27 1/7+63/27 1/49+9/27